NPASS Compound

Natural Product: NPC18809

Natural Product ID	NPC18809
Common Name ? The InCHIKey will be temporarily assigned as the "Common Name" if no IUPAC name or alternative short name is available.	BCFNGCHELGNCOO-DXTJESGOSA-N
IUPAC Name	n.a.
Synonyms
Synthetic Gene Cluster	n.a.
ChEMBL Identifier	n.a.
PubChem CID	21608712
Chemical Classification	CHEMONTID:0000000 [Organic compounds] [CHEMONTID:0000279] Alkaloids and derivatives [CHEMONTID:0002755] Aspidospermatan-type alkaloids

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

Chemical Representations

RDKit 3D 98110 0 0 0 0 0 0 0 0999 V2000 -4.3299 3.1086 1.3199 C 0 0 0 0 0 0 0 0 0 0 0 0 -4.6445 1.9775 0.3309 C 0 0 0 0 0 0 0 0 0 0 0 0 -4.6056 0.7025 1.0994 C 0 0 1 0 0 0 0 0 0 0 0 0 -3.2326 0.4704 1.7331 C 0 0 0 0 0 0 0 0 0 0 0 0 -2.2501 0.3492 0.6396 C 0 0 1 0 0 0 0 0 0 0 0 0 -0.8629 0.0598 1.1144 C 0 0 0 0 0 0 0 0 0 0 0 0 0.1560 -0.2000 0.0612 C 0 0 1 0 0 0 0 0 0 0 0 0 0.7108 1.1546 -0.3643 C 0 0 0 0 0 0 0 0 0 0 0 0 1.9561 0.9248 -1.0048 N 0 0 0 0 0 0 0 0 0 0 0 0 2.5942 1.9931 -1.6637 C 0 0 0 0 0 0 0 0 0 0 0 0 4.0200 1.4376 -1.8046 C 0 0 0 0 0 0 0 0 0 0 0 0 4.2567 0.8609 -0.3964 C 0 0 2 0 0 0 0 0 0 0 0 0 4.9705 1.8821 0.4125 C 0 0 0 0 0 0 0 0 0 0 0 0 4.5480 3.0465 0.9959 C 0 0 0 0 0 0 0 0 0 0 0 0 5.4632 3.9307 1.5798 C 0 0 0 0 0 0 0 0 0 0 0 0 6.8026 3.6094 1.5582 C 0 0 0 0 0 0 0 0 0 0 0 0 7.2277 2.4343 0.9728 C 0 0 0 0 0 0 0 0 0 0 0 0 6.3047 1.5585 0.3959 C 0 0 0 0 0 0 0 0 0 0 0 0 6.4498 0.2284 -0.1365 N 0 0 0 0 0 0 0 0 0 0 0 0 5.1627 -0.2801 -0.4357 C 0 0 0 0 0 0 0 0 0 0 0 0 4.6778 -1.5000 -0.6451 C 0 0 0 0 0 0 0 0 0 0 0 0 3.1854 -1.6616 -0.8280 C 0 0 0 0 0 0 0 0 0 0 0 0 2.5978 -0.8669 0.3323 C 0 0 2 0 0 0 0 0 0 0 0 0 3.3267 -1.3050 1.5665 C 0 0 0 0 0 0 0 0 0 0 0 0 2.2440 -1.5368 2.5660 C 0 0 0 0 0 0 0 0 0 0 0 0 1.0436 -1.2173 2.0098 O 0 0 0 0 0 0 0 0 0 0 0 0 1.1850 -1.1187 0.6248 C 0 0 1 0 0 0 0 0 0 0 0 0 2.8986 0.6030 0.0923 C 0 0 2 0 0 0 0 0 0 0 0 0 5.5630 -2.6381 -0.6950 C 0 0 0 0 0 0 0 0 0 0 0 0 6.7957 -2.5677 -0.5520 O 0 0 0 0 0 0 0 0 0 0 0 0 5.0001 -3.8993 -0.9181 O 0 0 0 0 0 0 0 0 0 0 0 0 5.8324 -5.0647 -0.9772 C 0 0 0 0 0 0 0 0 0 0 0 0 -0.3659 -0.8213 -1.2274 C 0 0 0 0 0 0 0 0 0 0 0 0 -1.7491 -0.4767 -1.4516 N 0 0 0 0 0 0 0 0 0 0 0 0 -2.6028 0.1271 -2.3832 C 0 0 0 0 0 0 0 0 0 0 0 0 -2.2253 0.8340 -3.5329 C 0 0 0 0 0 0 0 0 0 0 0 0 -3.2019 1.4021 -4.3157 C 0 0 0 0 0 0 0 0 0 0 0 0 -4.5374 1.2762 -3.9711 C 0 0 0 0 0 0 0 0 0 0 0 0 -4.8708 0.5713 -2.8310 C 0 0 0 0 0 0 0 0 0 0 0 0 -3.9235 -0.0138 -2.0198 C 0 0 0 0 0 0 0 0 0 0 0 0 -3.9483 -0.8303 -0.8079 C 0 0 2 0 0 0 0 0 0 0 0 0 -4.3503 -2.2748 -1.1441 C 0 0 0 0 0 0 0 0 0 0 0 0 -4.9071 -2.7490 0.1705 C 0 0 0 0 0 0 0 0 0 0 0 0 -4.7618 -1.6769 1.1070 N 0 0 0 0 0 0 0 0 0 0 0 0 -5.6309 -1.7227 2.2170 C 0 0 0 0 0 0 0 0 0 0 0 0 -6.1485 -0.4255 2.7178 C 0 0 2 0 0 0 0 0 0 0 0 0 -5.6334 0.7822 2.2026 C 0 0 1 0 0 0 0 0 0 0 0 0 -5.2562 0.3420 3.4936 O 0 0 0 0 0 0 0 0 0 0 0 0 -4.9454 -0.4942 0.2374 C 0 0 1 0 0 0 0 0 0 0 0 0 -2.5863 -0.8243 -0.2924 C 0 0 2 0 0 0 0 0 0 0 0 0 -4.6119 2.8433 2.3462 H 0 0 0 0 0 0 0 0 0 0 0 0 -4.7795 4.0546 0.9755 H 0 0 0 0 0 0 0 0 0 0 0 0 -3.2156 3.2845 1.3457 H 0 0 0 0 0 0 0 0 0 0 0 0 -3.9497 2.0793 -0.4975 H 0 0 0 0 0 0 0 0 0 0 0 0 -5.6771 2.1869 -0.0259 H 0 0 0 0 0 0 0 0 0 0 0 0 -3.3033 -0.4801 2.2737 H 0 0 0 0 0 0 0 0 0 0 0 0 -2.9676 1.3041 2.3835 H 0 0 0 0 0 0 0 0 0 0 0 0 -2.1758 1.2549 -0.0034 H 0 0 0 0 0 0 0 0 0 0 0 0 -0.5268 0.9608 1.7028 H 0 0 0 0 0 0 0 0 0 0 0 0 -0.9229 -0.7556 1.8772 H 0 0 0 0 0 0 0 0 0 0 0 0 0.8414 1.8288 0.5041 H 0 0 0 0 0 0 0 0 0 0 0 0 -0.0063 1.5662 -1.1043 H 0 0 0 0 0 0 0 0 0 0 0 0 2.6257 2.9548 -1.1543 H 0 0 0 0 0 0 0 0 0 0 0 0 2.2466 2.0979 -2.7351 H 0 0 0 0 0 0 0 0 0 0 0 0 4.7555 2.2349 -1.9599 H 0 0 0 0 0 0 0 0 0 0 0 0 4.0848 0.6027 -2.5041 H 0 0 0 0 0 0 0 0 0 0 0 0 3.5173 3.3282 1.0325 H 0 0 0 0 0 0 0 0 0 0 0 0 5.1373 4.8508 2.0418 H 0 0 0 0 0 0 0 0 0 0 0 0 7.4959 4.3056 2.0122 H 0 0 0 0 0 0 0 0 0 0 0 0 8.2659 2.1839 0.9552 H 0 0 0 0 0 0 0 0 0 0 0 0 7.3518 -0.2831 -0.2806 H 0 0 0 0 0 0 0 0 0 0 0 0 2.8889 -2.7083 -0.7194 H 0 0 0 0 0 0 0 0 0 0 0 0 2.8857 -1.3028 -1.8129 H 0 0 0 0 0 0 0 0 0 0 0 0 4.0403 -0.5299 1.8914 H 0 0 0 0 0 0 0 0 0 0 0 0 3.9265 -2.2233 1.3957 H 0 0 0 0 0 0 0 0 0 0 0 0 2.4152 -0.8257 3.4267 H 0 0 0 0 0 0 0 0 0 0 0 0 2.2996 -2.5470 3.0209 H 0 0 0 0 0 0 0 0 0 0 0 0 0.9546 -2.1688 0.2644 H 0 0 0 0 0 0 0 0 0 0 0 0 2.6120 1.1638 1.0040 H 0 0 0 0 0 0 0 0 0 0 0 0 5.4827 -5.7462 -0.1867 H 0 0 0 0 0 0 0 0 0 0 0 0 6.9048 -4.8045 -0.8696 H 0 0 0 0 0 0 0 0 0 0 0 0 5.6636 -5.5093 -1.9755 H 0 0 0 0 0 0 0 0 0 0 0 0 -0.3057 -1.9302 -1.1776 H 0 0 0 0 0 0 0 0 0 0 0 0 0.2177 -0.4903 -2.0884 H 0 0 0 0 0 0 0 0 0 0 0 0 -1.1895 0.9380 -3.8103 H 0 0 0 0 0 0 0 0 0 0 0 0 -2.9577 1.9565 -5.2120 H 0 0 0 0 0 0 0 0 0 0 0 0 -5.3335 1.7032 -4.5516 H 0 0 0 0 0 0 0 0 0 0 0 0 -5.9040 0.4643 -2.5494 H 0 0 0 0 0 0 0 0 0 0 0 0 -3.5093 -2.8597 -1.5149 H 0 0 0 0 0 0 0 0 0 0 0 0 -5.1882 -2.1696 -1.8790 H 0 0 0 0 0 0 0 0 0 0 0 0 -4.2654 -3.6224 0.4862 H 0 0 0 0 0 0 0 0 0 0 0 0 -5.9698 -3.0756 0.0715 H 0 0 0 0 0 0 0 0 0 0 0 0 -5.0766 -2.2140 3.0706 H 0 0 0 0 0 0 0 0 0 0 0 0 -6.4628 -2.4482 1.9929 H 0 0 0 0 0 0 0 0 0 0 0 0 -7.2060 -0.4630 3.0931 H 0 0 0 0 0 0 0 0 0 0 0 0 -6.2960 1.6968 2.2422 H 0 0 0 0 0 0 0 0 0 0 0 0 -5.9720 -0.4072 -0.1147 H 0 0 0 0 0 0 0 0 0 0 0 0 -2.2432 -1.7809 0.1645 H 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0 3 2 1 6 3 4 1 0 4 5 1 0 5 6 1 0 7 6 1 1 7 8 1 0 8 9 1 0 9 10 1 0 10 11 1 0 12 11 1 6 12 13 1 0 13 14 2 0 14 15 1 0 15 16 2 0 16 17 1 0 17 18 2 0 18 19 1 0 19 20 1 0 20 21 2 0 21 22 1 0 23 22 1 6 23 24 1 0 24 25 1 0 25 26 1 0 26 27 1 0 23 28 1 0 21 29 1 0 29 30 2 0 29 31 1 0 31 32 1 0 7 33 1 0 33 34 1 0 34 35 1 0 35 36 2 0 36 37 1 0 37 38 2 0 38 39 1 0 39 40 2 0 40 41 1 0 41 42 1 6 42 43 1 0 43 44 1 0 44 45 1 0 45 46 1 0 46 47 1 0 47 48 1 0 44 49 1 0 41 50 1 0 47 3 1 0 49 3 1 0 50 5 1 0 27 7 1 0 50 34 1 0 28 9 1 0 40 35 1 0 49 41 1 0 20 12 1 0 27 23 1 0 48 46 1 0 28 12 1 0 18 13 1 0 1 51 1 0 1 52 1 0 1 53 1 0 2 54 1 0 2 55 1 0 4 56 1 0 4 57 1 0 5 58 1 6 6 59 1 0 6 60 1 0 8 61 1 0 8 62 1 0 10 63 1 0 10 64 1 0 11 65 1 0 11 66 1 0 14 67 1 0 15 68 1 0 16 69 1 0 17 70 1 0 19 71 1 0 22 72 1 0 22 73 1 0 24 74 1 0 24 75 1 0 25 76 1 0 25 77 1 0 27 78 1 6 28 79 1 1 32 80 1 0 32 81 1 0 32 82 1 0 33 83 1 0 33 84 1 0 36 85 1 0 37 86 1 0 38 87 1 0 39 88 1 0 42 89 1 0 42 90 1 0 43 91 1 0 43 92 1 0 45 93 1 0 45 94 1 0 46 95 1 1 47 96 1 1 49 97 1 6 50 98 1 1 M END

Standard InCHIKey	BCFNGCHELGNCOO-DXTJESGOSA-N
Standard InCHI	InChI=1S/C42H48N4O4/c1-3-39-19-24-18-38(23-46-29-11-7-5-9-27(29)42(32(24)46)13-15-44(35(39)42)21-30-33(39)50-30)22-45-16-12-41-26-8-4-6-10-28(26)43-31(41)25(34(47)48-2)20-40(36(41)45)14-17-49-37(38)40/h4-11,24,30,32-33,35-37,43H,3,12-23H2,1-2H3/t24-,30-,32+,33-,35+,36+,37+,38+,39-,40+,41+,42+/m1/s1
SMILES	CC[C@@]12C[C@H]3C[C@]4(CN5CC[C@]67c8ccccc8NC6=C(C[C@@]6(CCO[C@@H]46)[C@H]57)C(=O)OC)CN4c5ccccc5[C@@]5(CCN(C[C@@H]6[C@H]1O6)[C@@H]25)[C@H]34

Calculated Properties

Physi-Chem Properties

Molecular Weight:	672.37	Volume:	681.81 ? Van der Waals volume.
Dense:	0.986	LogP:	3.635 ? The logarithm of the n-octanol/water distribution coefficients.
logD7.4:	3.176 ? The logarithm of the n-octanol/water distribution coefficient at pH=7.4.	LogS:	-5.313 ? The logarithm of aqueous solubility value.
Rotatable Bonds:	3.0	Rigid Bonds:	57.0
TPSA:	69.81 ? Topological Polar Surface Area.	H-Bond Acceptor:	8.0
H-Bond Donor:	1.0	Rings:	13.0
Heavy Atoms:	8.0

MedChem Properties

QED Drug-Likeness Score:	0.36	GASA:	1.0 ? GASA represents the probability of being difficult to synthesize, ranging from 0 to 1.
Synthetic Accessibility Score:	7.004	Fsp³:	0.643
MCE-18:	333.391 ? MCE-18 stands for medicinal chemistry evolution.MCE-18≥45 is considered a suitable value.	Lipinski Rule-of-5:	Rejected
Pfizer Rule:	Accepted	GSK Rule:	Accepted
Golden Triangle Rule:	Accepted	BMS Rule:	0
Chelating Alert:	0	PAINS Alert:	0
Colloidal aggregators:	0.869	Fluc inhibitor:	0.0 ? The fluc inhibitor value is the probability of being fLuc inhibitors, within the range of 0 to 1.
Blue fluorescence:	0.416 ? The blue fluorescence value is the probability of being blue fluorescence, within the range of 0 to 1	Green fluorescence:	0.308 ? The green fluorescence value is the probability of being green fluorescence, within the range of 0 to 1
Reactive compounds:	0.001	Promiscuous compounds:	0.42

ADMET Properties (ADMETlab3.0)

ADMET: Absorption

Caco-2 Permeability:	-5.237	MDCK Permeability:	-4.836
Pgp-inhibitor:	0.001	Pgp-substrate:	1.0
PAMPA:	0.0 ? The experimental data for Peff was logarithmically transformed (logPeff). Molecules with log Peff values below 2.0 were classified as low-permeability (Category 0), while those with log Peff values exceeding 2.5 were classified as high-permeability (Category 1).	Human Intestinal Absorption (HIA):	0.0
20% Bioavailability (F20%):	0.837	30% Bioavailability (F30%):	0.999
50% Bioavailability (F50%):	1.0

ADMET: Distribution

Blood-Brain-Barrier Penetration (BBB):	0.999	MRP1:	0.994
Plasma Protein Binding (PPB):	90.407%	Volume Distribution (VD):	0.782
Fu:	9.369% ? The fraction unbound in plasms.	OATP1B1 inhibitor:	0.9
OATP1B3 inhibitor:	0.105	BCRP inhibitor:	0.007
BSEP inhibitor:	0.992

ADMET: Metabolism

CYP1A2-inhibitor:	1.0	CYP1A2-substrate:	0.0
CYP2C19-inhibitor:	1.0	CYP2C19-substrate:	0.0
CYP2C9-inhibitor:	0.0	CYP2C9-substrate:	0.997
CYP2D6-inhibitor:	1.0	CYP2D6-substrate:	0.197
CYP3A4-inhibitor:	1.0	CYP3A4-substrate:	0.0
CYP2B6-substrate:	0.0	CYP2C8-inhibitor:	0.0
HLM stability:	0.047 ? Human liver microsomal (HLM) stability. Category 0: stable+ (HLM > 30 min); Category 1: unstable- (HLM ≤ 30 min). The output value is the probability of human liver microsomal instability, where a value closer to 1 indicates a higher likelihood of instability.

ADMET: Excretion

Clearance (CL):

12.786

Half-life (T1/2):

0.936

ADMET: Toxicity

hERG Blockers:	0.53	hERG Blockers (10um):	0.671
Human Hepatotoxicity (H-HT):	0.861	Drug-induced Liver Injury (DILI):	0.467
AMES Toxicity:	0.457	Rat Oral Acute Toxicity:	0.792
Maximum Recommended Daily Dose:	0.937	Skin Sensitization:	0.932
Carcinogencity:	0.243	Eye Corrosion:	0.0
Eye Irritation:	0.001	Respiratory Toxicity:	0.937
Drug-induced Neurotoxicity:	0.685	Ototoxicity:	0.935
Hematotoxicity:	0.654	Drug-induced Nephrotoxicity:	0.954
Genotoxicity:	0.999	RPMI-8226 Immunitoxicity:	0.068
A549 Cytotoxicity:	0.301	Hek293 Cytotoxicity:	0.572
BCF:	2.183 ? Bioconcentration factors are used for considering secondary poisoning potential and assessing risks to human health via the food chain. The unit is -log10[(mg/L)/(1000*MW)].	IGC50:	4.791 ? 48 hour Tetrahymena pyriformis IGC50. The unit of IGC50 is -log10[(mg/L)/(1000*MW)].
LC50DM:	6.232 ? 48 hour Daphnia magna LC50. The unit of LC50DM is -log10[(mg/L)/(1000*MW)].	LC50FM:	5.838 ? 96 hour fathead minnow LC50. The unit of LC50FM is -log10[(mg/L)/(1000*MW)].

Species Source

Organism ID	Organism Name	Taxonomy Level	Family	SuperKingdom	Isolation Part	Collection Location	Collection Time	Reference
NPO40369	Tabernaemontana pachysiphon	Species	Apocynaceae	Eukaryota	n.a.	n.a.	n.a.	PMID[33112136]

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

Activity Type	# Activity
IC50	6

Activity Type	# Activity
Cell line	6

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
NPT82	Cell line	MDA-MB-231	Homo sapiens	IC50	>	10000.0	nM	PMID[33112136]
NPT81	Cell line	A549	Homo sapiens	IC50	>	10000.0	nM	PMID[33112136]
NPT396	Cell line	T47D	Homo sapiens	IC50	>	10000.0	nM	PMID[33112136]
NPT170	Cell line	SK-MEL-28	Homo sapiens	IC50	>	10000.0	nM	PMID[33112136]
NPT660	Cell line	SW480	Homo sapiens	IC50	>	10000.0	nM	PMID[33112136]
NPT65	Cell line	HepG2	Homo sapiens	IC50	>	10000.0	nM	PMID[33112136]

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

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

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 NPC18809 and all remaining natural products in the NPASS database.
● The right table: Most similar natural products (Tc>=0.5 or Top200).

range	Tanimoto Coefficient
0-0.1	25561
0.1-0.2	24001
0.2-0.3	205
0.3-0.4	46
0.4-0.5	22
0.5-0.6	10
0.6-0.7	4
0.7-0.8	0
0.8-0.85	0
0.85-0.9	0
0.9-0.95	0
0.95-1	1

Similarity Score	Similarity Level	Natural Product ID
1.0	High Similarity	NPC199826
0.7913	Intermediate Similarity	NPC485978
0.7913	Intermediate Similarity	NPC485973
0.7647	Intermediate Similarity	NPC208310
0.7647	Intermediate Similarity	NPC301174
0.7373	Intermediate Similarity	NPC485975
0.7167	Intermediate Similarity	NPC223242
0.7073	Intermediate Similarity	NPC485971
0.6935	Remote Similarity	NPC139373
0.6457	Remote Similarity	NPC485974
0.6457	Remote Similarity	NPC485979
0.6408	Remote Similarity	NPC159963
0.5789	Remote Similarity	NPC208572
0.5778	Remote Similarity	NPC301501
0.562	Remote Similarity	NPC62560
0.558	Remote Similarity	NPC485976
0.554	Remote Similarity	NPC485972
0.5468	Remote Similarity	NPC469450
0.539	Remote Similarity	NPC469451
0.5385	Remote Similarity	NPC485977
0.5133	Remote Similarity	NPC195636
0.5043	Remote Similarity	NPC19175

Similar Clinical/Approved Drugs

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

● The left chart: Distribution of similarity level between NPC18809 and all drugs/candidates.
● The right table: Most similar clinical/approved drugs (Tc>=0.5 or Top200).

range	Tanimoto Coefficient
0-0.1	4090
0.1-0.2	5024
0.2-0.3	36
0.3-0.4	0
0.4-0.5	0
0.5-0.6	0
0.6-0.7	0
0.7-0.8	0
0.8-0.85	0
0.85-0.9	0
0.9-0.95	0
0.95-1	0

Similarity Score	Similarity Level	Drug ID	Developmental Stage
		NPD

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