Natural Product: NPC191929

Natural Product IDNPC191929
Common Name
?
The InCHIKey will be temporarily assigned as the "Common Name" if no IUPAC name or alternative short name is available.
Sid524793
IUPAC Name (2S)-4-[(2R,9R)-2,9-dihydroxy-9-[(2R,5R)-5-[(2R,5R)-5-[(1R)-1-hydroxypentadecyl]oxolan-2-yl]oxolan-2-yl]nonyl]-2-methyl-2H-furan-5-one
Synonyms
Synthetic Gene Cluster n.a.
ChEMBL Identifier CHEMBL51764
PubChem CID 393466
Chemical Classification
  • CHEMONTID:0000000 [Organic compounds]
    • [CHEMONTID:0000012] Lipids and lipid-like molecules
      • [CHEMONTID:0003909] Fatty Acyls
        • [CHEMONTID:0001334] Fatty alcohols
          • [CHEMONTID:0002518] Annonaceous acetogenins

The Chemical Classification was calculated by Classyfire, a software for chemical taxonomy calculation. Reference: DOI:10.1186/s13321-016-0174-y.

  Chemical Representations

Standard InCHIKey JXPQTEZDMVYIHK-UOCXRWNNSA-N
Standard InCHI InChI=1S/C37H66O7/c1-3-4-5-6-7-8-9-10-11-12-13-17-20-31(39)33-22-24-35(43-33)36-25-23-34(44-36)32(40)21-18-15-14-16-19-30(38)27-29-26-28(2)42-37(29)41/h26,28,30-36,38-40H,3-25,27H2,1-2H3/t28-,30+,31+,32+,33+,34+,35+,36+/m0/s1
SMILES CCCCCCCCCCCCCC[C@H]([C@H]1CC[C@@H](O1)[C@H]1CC[C@@H](O1)[C@@H](CCCCCC[C@H](CC1=C[C@@H](OC1=O)C)O)O)O

  Calculated Properties

Physi-Chem Properties

MedChem Properties

ADMET Properties (ADMETlab3.0)

ADMET: Absorption

ADMET: Distribution

ADMET: Metabolism

ADMET: Excretion

ADMET: Toxicity

  Species Source

Organism ID Organism Name Taxonomy Level Family SuperKingdom Isolation Part Collection Location Collection Time Reference
NPO6886 Asimina longifolia Species Annonaceae Eukaryota n.a. n.a. n.a. PMID[7494147]
NPO6886 Asimina longifolia Species Annonaceae Eukaryota n.a. n.a. n.a. PMID[8627602]
NPO6886 Asimina longifolia Species Annonaceae Eukaryota n.a. n.a. n.a. Database[COCONUT]
NPO6886 Asimina longifolia Species Annonaceae Eukaryota n.a. n.a. n.a. Database[UNPD]

Note for Reference:
In addition to directly collecting NP source organism data from primary literature (where reference will provided as NCBI PMID or DOI links), NPASS also integrated them from below databases:
UNPD: Universal Natural Products Database [PMID: 23638153].
StreptomeDB: a database of streptomycetes natural products [PMID: 33051671].
TM-MC: a database of medicinal materials and chemical compounds in Northeast Asian traditional medicine [PMID: 26156871].
TCM@Taiwan: a Traditional Chinese Medicine database [PMID: 21253603].
TCMID: a Traditional Chinese Medicine database [PMID: 29106634].
TCMSP: The traditional Chinese medicine systems pharmacology database and analysis platform [PMID: 24735618].
HerDing: a herb recommendation system to treat diseases using genes and chemicals [PMID: 26980517].
MetaboLights: a metabolomics database [PMID: 27010336].
FooDB: a database of constituents, chemistry and biology of food species [www.foodb.ca].



  NP Quantity Composition/Concentration

Organism ID Organism Name Organism Material Preparation Organism Part NP Quantity (Standard) NP Quantity (Minimum) NP Quantity (Maximum) Quantity Unit Reference

Note for Reference:
In addition to directly collecting NP quantitative data from primary literature (where reference will provided as NCBI PMID or DOI links), NPASS also integrated NP quantitative records for specific NP domains (e.g., NPS from foods or herbs) from domain-specific databases. These databases include:
DUKE: Dr. Duke's Phytochemical and Ethnobotanical Databases.
PHENOL EXPLORER: is the first comprehensive database on polyphenol content in foods [PMID: 24103452], its homepage can be accessed at here.
FooDB: a database of constituents, chemistry and biology of food species [www.foodb.ca].



 Biological Activity

Molecular-level activity

Target ID Target Type Target Name Target Organism Activity Type Activity Relation Value Unit Reference

In vitro activity

Target ID Target Type Target Name Target Organism Activity Type Activity Relation Value Unit Reference
NPT81 Cell line A549 Homo sapiens ED50 = 0.295 ug ml-1 PMID[18977148]
NPT83 Cell line MCF7 Homo sapiens ED50 = 0.889 ug ml-1 PMID[10869203]
NPT139 Cell line HT-29 Homo sapiens ED50 = 0.525 ug ml-1 PMID[10869203]
NPT376 Cell line A498 Homo sapiens ED50 = 0.544 ug ml-1 PMID[10869203]
NPT306 Cell line PC-3 Homo sapiens ED50 = 0.0701 ug ml-1 PMID[10869203]
NPT783 Cell line MIA PaCa-2 Homo sapiens ED50 = 0.0173 ug ml-1 PMID[10869203]
NPT368 Cell line SN12C Homo sapiens GI50 n.a. 2197.86 nM PMID[8350090]
NPT367 Cell line MDA-N Homo sapiens GI50 n.a. 2027.68 nM PMID[18070958]
NPT369 Cell line ACHN Homo sapiens GI50 n.a. 25003.45 nM PMID[17567585]
NPT370 Cell line NCI-H23 Homo sapiens GI50 n.a. 1196.74 nM PMID[20100877]
NPT371 Cell line UO-31 Homo sapiens GI50 n.a. 25003.45 nM PMID[15497938]
NPT372 Cell line HOP-92 Homo sapiens GI50 n.a. 3341.95 nM DOI[10.6019/CHEMBL1201861]
NPT90 Cell line DU-145 Homo sapiens GI50 n.a. 4236.43 nM DrugMatrix in vitro pharmacology data
NPT116 Cell line HL-60 Homo sapiens GI50 n.a. 2218.2 nM PMID[8350090]
NPT374 Cell line SF-539 Homo sapiens GI50 n.a. 13772.09 nM PMID[11374968]
NPT373 Cell line SK-MEL-5 Homo sapiens GI50 n.a. 117.22 nM PMID[25316316]
NPT375 Cell line Malme-3M Homo sapiens GI50 n.a. 25003.45 nM PMID[25978960]
NPT111 Cell line K562 Homo sapiens GI50 n.a. 382.82 nM PMID[25621853]
NPT376 Cell line A498 Homo sapiens GI50 n.a. 12502.59 nM PMID[18490506]
NPT377 Cell line OVCAR-3 Homo sapiens GI50 n.a. 25003.45 nM PMID[18070958]
NPT112 Cell line MOLT-4 Homo sapiens GI50 n.a. 443.61 nM PMID[15387645]
NPT379 Cell line HOP-62 Homo sapiens GI50 n.a. 25003.45 nM PMID[18227183]
NPT378 Cell line NCI/ADR-RES Homo sapiens GI50 n.a. 20090.93 nM PMID[16413779]
NPT380 Cell line U-251 Homo sapiens GI50 n.a. 25003.45 nM PMID[17512741]
NPT381 Cell line OVCAR-8 Homo sapiens GI50 n.a. 1745.82 nM PMID[19105653]
NPT382 Cell line OVCAR-5 Homo sapiens GI50 n.a. 25003.45 nM PMID[19410459]
NPT82 Cell line MDA-MB-231 Homo sapiens GI50 n.a. 25003.45 nM DrugMatrix in vivo data: Biochemistry
NPT383 Cell line SNB-19 Homo sapiens GI50 n.a. 25003.45 nM DrugMatrix in vitro pharmacology data
NPT385 Cell line SR Homo sapiens GI50 n.a. 1025.65 nM PMID[20014752]
NPT384 Cell line TK-10 Homo sapiens GI50 n.a. 25003.45 nM PubChem BioAssay data set
NPT323 Cell line SW-620 Homo sapiens GI50 n.a. 25003.45 nM PMID[22194678]
NPT386 Cell line KM12 Homo sapiens GI50 n.a. 25003.45 nM PMID[15497934]
NPT455 Cell line NCI-H522 Homo sapiens GI50 n.a. 8933.05 nM PMID[25554367]
NPT387 Cell line M14 Homo sapiens GI50 n.a. 25003.45 nM PMID[12444692]
NPT388 Cell line NCI-H322M Homo sapiens GI50 n.a. 25003.45 nM PMID[26948407]
NPT389 Cell line RPMI-8226 Homo sapiens GI50 n.a. 1465.55 nM PMID[25437914]
NPT456 Cell line OVCAR-4 Homo sapiens GI50 n.a. 25003.45 nM PMID[17190456]
NPT390 Cell line LOX IMVI Homo sapiens GI50 n.a. 1216.19 nM PMID[21377877]
NPT457 Cell line BT-549 Homo sapiens GI50 n.a. 25003.45 nM PMID[17140705]
NPT147 Cell line SK-MEL-2 Homo sapiens GI50 n.a. 25003.45 nM PMID[23376010]
NPT391 Cell line HCC 2998 Homo sapiens GI50 n.a. 25003.45 nM PubChem BioAssay data set
NPT81 Cell line A549 Homo sapiens GI50 n.a. 25003.45 nM PMID[20188576]
NPT392 Cell line SNB-75 Homo sapiens GI50 n.a. 25003.45 nM PubChem BioAssay data set
NPT148 Cell line HCT-15 Homo sapiens GI50 n.a. 25003.45 nM PubChem BioAssay data set
NPT393 Cell line HCT-116 Homo sapiens GI50 n.a. 203.24 nM PMID[24099304]
NPT395 Cell line SF-268 Homo sapiens GI50 n.a. 25003.45 nM PMID[20055477]
NPT394 Cell line EKVX Homo sapiens GI50 n.a. 7516.23 nM PMID[19770287]
NPT306 Cell line PC-3 Homo sapiens GI50 n.a. 25003.45 nM Open TG-GATES in vivo data: Biochemistry
NPT83 Cell line MCF7 Homo sapiens GI50 n.a. 15275.66 nM PMID[23586849]
NPT146 Cell line SK-OV-3 Homo sapiens GI50 n.a. 25003.45 nM PMID[10924160]
NPT396 Cell line T47D Homo sapiens GI50 n.a. 3981.07 nM PMID[15217273]
NPT397 Cell line NCI-H460 Homo sapiens GI50 n.a. 55.21 nM PMID[16933872]
NPT398 Cell line UACC-62 Homo sapiens GI50 n.a. 1541.7 nM PMID[19674906]
NPT308 Cell line CAKI-1 Homo sapiens GI50 n.a. 25003.45 nM PMID[20055477]
NPT399 Cell line SF-295 Homo sapiens GI50 n.a. 25003.45 nM PMID[22939698]
NPT400 Cell line MDA-MB-435 Homo sapiens GI50 n.a. 25003.45 nM PMID[16933872]
NPT458 Cell line IGROV-1 Homo sapiens GI50 n.a. 25003.45 nM PMID[11931609]
NPT402 Cell line Hs-578T Homo sapiens GI50 n.a. 1633.05 nM PMID[17110371]
NPT401 Cell line 786-0 Homo sapiens GI50 n.a. 25003.45 nM PMID[15974612]
NPT403 Cell line UACC-257 Homo sapiens GI50 n.a. 3647.54 nM DrugMatrix in vitro pharmacology data
NPT404 Cell line CCRF-CEM Homo sapiens GI50 n.a. 25003.45 nM PMID[26046820]
NPT139 Cell line HT-29 Homo sapiens GI50 n.a. 1702.16 nM PMID[21332115]
NPT405 Cell line NCI-H226 Homo sapiens GI50 n.a. 25003.45 nM PMID[19738023]
NPT170 Cell line SK-MEL-28 Homo sapiens GI50 n.a. 25003.45 nM PMID[15217279]
NPT406 Cell line RXF 393 Homo sapiens GI50 n.a. 25003.45 nM PMID[23819871]
NPT407 Cell line COLO 205 Homo sapiens GI50 n.a. 25003.45 nM PMID[24195466]

In vivo activity

Target ID Target Type Target Name Target Organism Activity Type Activity Relation Value Unit Reference





 Experimental ADME

Experiment Model Experiment Tissue ADME Type ADME Relation ADME Value ADME Unit Reference





 Experimental Toxicity

Quantitative toxicity

Experiment Model Experiment Organism Toxicity Type Toxicity Relation Toxicity Value Toxicity Unit Reference
- Artemia LC50 = 18.7 ug.mL-1 PMID[8691207]

Common Abbreviations:
LC: Lethal Concentration; LD: Lethal Dose; LT:Lethal Time; NOAEL: No-observed-adverse-effect Level; BMDL: Benchmark Dose Lower Confidence Limit; BMD: Benchmark Dose; BMC:Benchmark Concentration; LOAEL: Lowest Observed Adverse Effect Level; RfD:Reference Dose; RfC:Reference Concentration; MRL: Minimal Risk Level; MEG: Maximum Exposure Guideline; PAC: Protective Action Criteria

Categorical toxicity labels

Hepatotoxicity Carcinogenicity Mutagenicity Cardiotoxicity Respiratory Toxicity Eye Irritation Endocrine Disruption
Hepatotoxicity Carcinogenicity Mutagenicity Cardiotoxicity Respiratory Toxicity Eye Irritation Endocrine Disruption

Note for Reference:
In addition to directly collecting NP quantitative data from primary literature (where reference will provided as NCBI PMID or DOI links), NPASS also integrated NP toxicity records from domain-specific databases. These databases include:
ToxValDB: a curated database that compiles quantitative toxicity values for chemicals from diverse public sources to support toxicological research and risk assessment.
TOXRIC: a comprehensive, free-to-access, online database providing toxicological/feature data. The toxicity labels are retrieved from this database. [PMID: 36400569]


  Chemically structural similarity

Similar Active Natural Products in NPASS

Top-200 similar NPs were calculated against the active-NP-set (includes approximately 50,000 NPs with experimentally-derived bioactivity available in NPASS)

Similarity is measured using the Tanimoto coefficient (Tc) , which compares the binary fingerprints of two molecules. Tc is calculated as the intersection divided by the union of '1' bits in the fingerprints, ranging from 0 to 1, with 1 indicating highest similarity.

●  The left chart: Distribution of similarity level between NPC191929 and all remaining natural products in the NPASS database.
●  The right table: Most similar natural products (Tc>=0.5 or Top200).

Similarity Score Similarity Level Natural Product ID
1.0 High Similarity NPC81045
1.0 High Similarity NPC39754
1.0 High Similarity NPC171135
1.0 High Similarity NPC61257
1.0 High Similarity NPC320569
1.0 High Similarity NPC133730
1.0 High Similarity NPC100454
1.0 High Similarity NPC242364
1.0 High Similarity NPC172821
1.0 High Similarity NPC274446
1.0 High Similarity NPC485251
1.0 High Similarity NPC151403
1.0 High Similarity NPC261952
1.0 High Similarity NPC605171
0.9767 High Similarity NPC93794
0.9767 High Similarity NPC473504
0.9767 High Similarity NPC81778
0.9767 High Similarity NPC40066
0.9333 High Similarity NPC42598
0.913 High Similarity NPC602738
0.8837 High Similarity NPC606043
0.875 High Similarity NPC169511
0.875 High Similarity NPC287164
0.875 High Similarity NPC234077
0.8636 High Similarity NPC107986
0.8636 High Similarity NPC223871
0.8636 High Similarity NPC231009
0.8636 High Similarity NPC103284
0.8636 High Similarity NPC110710
0.8636 High Similarity NPC1083
0.8636 High Similarity NPC82795
0.8636 High Similarity NPC286338
0.8636 High Similarity NPC603931
0.8636 High Similarity NPC604237
0.8444 Intermediate Similarity NPC488253
0.8444 Intermediate Similarity NPC473669
0.8444 Intermediate Similarity NPC488251
0.84 Intermediate Similarity NPC239517
0.8261 Intermediate Similarity NPC232555
0.8261 Intermediate Similarity NPC171174
0.8261 Intermediate Similarity NPC114694
0.8261 Intermediate Similarity NPC485248
0.8261 Intermediate Similarity NPC142117
0.8261 Intermediate Similarity NPC480249
0.8261 Intermediate Similarity NPC485249
0.8261 Intermediate Similarity NPC240695
0.8235 Intermediate Similarity NPC91067
0.8085 Intermediate Similarity NPC488632
0.8085 Intermediate Similarity NPC473649
0.8085 Intermediate Similarity NPC473156
0.8085 Intermediate Similarity NPC134865
0.8085 Intermediate Similarity NPC154097
0.8085 Intermediate Similarity NPC103523
0.8085 Intermediate Similarity NPC159750
0.8085 Intermediate Similarity NPC73248
0.8085 Intermediate Similarity NPC282815
0.8085 Intermediate Similarity NPC488627
0.8085 Intermediate Similarity NPC488631
0.8085 Intermediate Similarity NPC470401
0.8085 Intermediate Similarity NPC600956
0.8085 Intermediate Similarity NPC610454
0.7925 Intermediate Similarity NPC473663
0.7925 Intermediate Similarity NPC473723
0.7925 Intermediate Similarity NPC475173
0.7917 Intermediate Similarity NPC280621
0.7917 Intermediate Similarity NPC473671
0.7917 Intermediate Similarity NPC475268
0.7917 Intermediate Similarity NPC470400
0.7917 Intermediate Similarity NPC77871
0.7917 Intermediate Similarity NPC48338
0.7917 Intermediate Similarity NPC9678
0.7917 Intermediate Similarity NPC319036
0.7917 Intermediate Similarity NPC488628
0.7917 Intermediate Similarity NPC604764
0.7917 Intermediate Similarity NPC605867
0.7872 Intermediate Similarity NPC182383
0.7826 Intermediate Similarity NPC25764
0.7826 Intermediate Similarity NPC235809
0.7826 Intermediate Similarity NPC39279
0.7826 Intermediate Similarity NPC39167
0.7826 Intermediate Similarity NPC292809
0.7826 Intermediate Similarity NPC202055
0.7826 Intermediate Similarity NPC606804
0.7826 Intermediate Similarity NPC607425
0.7826 Intermediate Similarity NPC608574
0.7755 Intermediate Similarity NPC178215
0.7755 Intermediate Similarity NPC473687
0.7755 Intermediate Similarity NPC204686
0.7755 Intermediate Similarity NPC219498
0.7755 Intermediate Similarity NPC308412
0.7755 Intermediate Similarity NPC134885
0.7755 Intermediate Similarity NPC488247
0.7755 Intermediate Similarity NPC132940
0.7755 Intermediate Similarity NPC210218
0.7755 Intermediate Similarity NPC488248
0.76 Intermediate Similarity NPC20621
0.76 Intermediate Similarity NPC318963
0.76 Intermediate Similarity NPC20533
0.76 Intermediate Similarity NPC488250
0.76 Intermediate Similarity NPC605101
0.75 Intermediate Similarity NPC488623
0.75 Intermediate Similarity NPC488624
0.75 Intermediate Similarity NPC488629
0.7451 Intermediate Similarity NPC473478
0.7451 Intermediate Similarity NPC69082
0.7451 Intermediate Similarity NPC473651
0.7451 Intermediate Similarity NPC488249
0.7451 Intermediate Similarity NPC66346
0.7442 Intermediate Similarity NPC608138
0.7391 Intermediate Similarity NPC112685
0.7347 Intermediate Similarity NPC47937
0.7347 Intermediate Similarity NPC477011
0.7347 Intermediate Similarity NPC600524
0.7347 Intermediate Similarity NPC608355
0.7308 Intermediate Similarity NPC120398
0.7308 Intermediate Similarity NPC283085
0.7308 Intermediate Similarity NPC130359
0.7308 Intermediate Similarity NPC14901
0.7308 Intermediate Similarity NPC471567
0.7255 Intermediate Similarity NPC134807
0.72 Intermediate Similarity NPC219652
0.72 Intermediate Similarity NPC473840
0.72 Intermediate Similarity NPC480079
0.717 Intermediate Similarity NPC89001
0.7083 Intermediate Similarity NPC100921
0.7083 Intermediate Similarity NPC475159
0.7083 Intermediate Similarity NPC131002
0.7083 Intermediate Similarity NPC473780
0.7083 Intermediate Similarity NPC477018
0.7083 Intermediate Similarity NPC604521
0.6981 Remote Similarity NPC231096
0.6981 Remote Similarity NPC475581
0.6981 Remote Similarity NPC62118
0.6981 Remote Similarity NPC132496
0.6981 Remote Similarity NPC107717
0.6981 Remote Similarity NPC488252
0.6923 Remote Similarity NPC485250
0.6923 Remote Similarity NPC605396
0.6909 Remote Similarity NPC488630
0.6909 Remote Similarity NPC488625
0.6909 Remote Similarity NPC488626
0.6863 Remote Similarity NPC25703
0.6852 Remote Similarity NPC233551
0.6852 Remote Similarity NPC40376
0.6852 Remote Similarity NPC21208
0.6809 Remote Similarity NPC73310
0.6809 Remote Similarity NPC473529
0.6809 Remote Similarity NPC180363
0.6809 Remote Similarity NPC94875
0.6809 Remote Similarity NPC11332
0.6809 Remote Similarity NPC145914
0.6809 Remote Similarity NPC601174
0.6809 Remote Similarity NPC601403
0.6809 Remote Similarity NPC603568
0.6809 Remote Similarity NPC604330
0.6809 Remote Similarity NPC608300
0.6809 Remote Similarity NPC611200
0.6809 Remote Similarity NPC611571
0.68 Remote Similarity NPC156804
0.6792 Remote Similarity NPC473707
0.6792 Remote Similarity NPC20339
0.6667 Remote Similarity NPC163093
0.6667 Remote Similarity NPC473995
0.6667 Remote Similarity NPC606740
0.6667 Remote Similarity NPC608614
0.6607 Remote Similarity NPC480081
0.64 Remote Similarity NPC329829
0.6316 Remote Similarity NPC473520
0.6296 Remote Similarity NPC309211
0.6296 Remote Similarity NPC329838
0.6296 Remote Similarity NPC477010
0.6207 Remote Similarity NPC473905
0.6167 Remote Similarity NPC482766
0.6167 Remote Similarity NPC279267
0.6071 Remote Similarity NPC258068
0.6071 Remote Similarity NPC476583
0.6038 Remote Similarity NPC488246
0.6038 Remote Similarity NPC144415
0.6038 Remote Similarity NPC480080
0.6038 Remote Similarity NPC607439
0.6038 Remote Similarity NPC608157
0.5965 Remote Similarity NPC477014
0.5965 Remote Similarity NPC477013
0.5926 Remote Similarity NPC241360
0.5926 Remote Similarity NPC293136
0.5882 Remote Similarity NPC480072
0.5818 Remote Similarity NPC473904
0.5818 Remote Similarity NPC65930
0.5614 Remote Similarity NPC11456
0.5614 Remote Similarity NPC480076
0.5614 Remote Similarity NPC480077
0.5614 Remote Similarity NPC477012
0.5517 Remote Similarity NPC488244
0.55 Remote Similarity NPC280612
0.5455 Remote Similarity NPC480078
0.5455 Remote Similarity NPC480071
0.5439 Remote Similarity NPC329615
0.5439 Remote Similarity NPC480075
0.5397 Remote Similarity NPC477017

Similar Clinical/Approved Drugs

Similarity level is defined by Tanimoto coefficient (Tc) between two molecules.

●  The left chart: Distribution of similarity level between NPC191929 and all drugs/candidates.
●  The right table: Most similar clinical/approved drugs (Tc>=0.5 or Top200).

Similarity Score Similarity Level Drug ID Developmental Stage
NPD

Bioactivity similarity

  Bioactivity similarity

Similar Natural Products in NPASS

Similarity level is defined by Bioactivity similarity was calculated based on bioactivity descriptors of compounds. The bioactivity descriptors were calculated by a recently developed AI algorithm Chemical Checker (CC) [Nature Biotechnology, 38:1087–1096, 2020; Nature Communications, 12:3932, 2021], which evaluated bioactivity similarities at five levels:
A: chemistry similarity;
B: biological targets similarity;
C: networks similarity;
D: cell-based bioactivity similarity;
E: similarity based on clinical data.
Those 5 categories of CC bioactivity descriptors were calculated and then subjected to manifold projection using UMAP algorithm, to project all NPs on a 2-Dimensional space. The current NP was highlighted with a small circle in the 2-D map. Below figures: left-to-right, A-to-E.

A: chemistry similarity
B: biological targets similarity
C: networks similarity
D: cell-based bioactivity similarity
E: similarity based on clinical data