NPASS Compound

Natural Product: NPC281258

Natural Product ID	NPC281258
Common Name ? The InCHIKey will be temporarily assigned as the "Common Name" if no IUPAC name or alternative short name is available.	6-Hydroxymexicanolide
IUPAC Name	n.a.
Synonyms
Synthetic Gene Cluster	n.a.
ChEMBL Identifier	CHEMBL2272737
PubChem CID	60200692
Chemical Classification	CHEMONTID:0000000 [Organic compounds] [CHEMONTID:0000012] Lipids and lipid-like molecules [CHEMONTID:0000259] Prenol lipids [CHEMONTID:0001553] Triterpenoids [CHEMONTID:0002380] Limonoids

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 67 71 0 0 0 0 0 0 0 0999 V2000 -6.4587 -1.5468 -0.6199 C 0 0 0 0 0 0 0 0 0 0 0 0 -5.2851 -0.7940 -0.8596 O 0 0 0 0 0 0 0 0 0 0 0 0 -4.0743 -1.3373 -1.2568 C 0 0 0 0 0 0 0 0 0 0 0 0 -4.1430 -2.6045 -1.3815 O 0 0 0 0 0 0 0 0 0 0 0 0 -2.8278 -0.5987 -1.5242 C 0 0 1 0 0 0 0 0 0 0 0 0 -2.1354 0.0670 -0.4064 C 0 0 1 0 0 0 0 0 0 0 0 0 -2.9888 1.1138 0.3244 C 0 0 0 0 0 0 0 0 0 0 0 0 -3.9606 0.5608 1.2946 C 0 0 0 0 0 0 0 0 0 0 0 0 -3.6588 2.0431 -0.6342 C 0 0 0 0 0 0 0 0 0 0 0 0 -2.0111 1.9741 1.1112 C 0 0 0 0 0 0 0 0 0 0 0 0 -1.8456 3.1394 0.9397 O 0 0 0 0 0 0 0 0 0 0 0 0 -1.2518 1.2375 2.1421 C 0 0 1 0 0 0 0 0 0 0 0 0 -1.4282 -0.2087 1.8823 C 0 0 0 0 0 0 0 0 0 0 0 0 -1.7332 -0.9550 2.7784 O 0 0 0 0 0 0 0 0 0 0 0 0 -1.2050 -0.6744 0.4621 C 0 0 1 0 0 0 0 0 0 0 0 0 -1.4178 -2.1757 0.4886 C 0 0 0 0 0 0 0 0 0 0 0 0 0.2734 -0.4573 0.2411 C 0 0 1 0 0 0 0 0 0 0 0 0 0.7217 -0.5850 -1.1804 C 0 0 0 0 0 0 0 0 0 0 0 0 2.1867 -0.3224 -1.3366 C 0 0 0 0 0 0 0 0 0 0 0 0 2.9373 -0.0407 -0.0844 C 0 0 2 0 0 0 0 0 0 0 0 0 2.1887 0.8663 0.8265 C 0 0 0 0 0 0 0 0 0 0 0 0 0.8765 0.6596 0.9860 C 0 0 0 0 0 0 0 0 0 0 0 0 0.2040 1.5935 1.9144 C 0 0 0 0 0 0 0 0 0 0 0 0 2.9038 1.9838 1.5454 C 0 0 0 0 0 0 0 0 0 0 0 0 4.3283 1.5221 1.7190 C 0 0 0 0 0 0 0 0 0 0 0 0 4.9810 1.6826 2.7711 O 0 0 0 0 0 0 0 0 0 0 0 0 4.9831 0.8722 0.6544 O 0 0 0 0 0 0 0 0 0 0 0 0 4.1912 0.7486 -0.5130 C 0 0 1 0 0 0 0 0 0 0 0 0 4.8768 0.1608 -1.6584 C 0 0 0 0 0 0 0 0 0 0 0 0 5.7006 -0.9277 -1.6682 C 0 0 0 0 0 0 0 0 0 0 0 0 6.1114 -1.1095 -2.9740 C 0 0 0 0 0 0 0 0 0 0 0 0 5.5695 -0.1808 -3.7331 O 0 0 0 0 0 0 0 0 0 0 0 0 4.8253 0.5968 -2.9823 C 0 0 0 0 0 0 0 0 0 0 0 0 3.4050 -1.2676 0.6633 C 0 0 0 0 0 0 0 0 0 0 0 0 -1.9956 -1.5386 -2.1758 O 0 0 0 0 0 0 0 0 0 0 0 0 -6.3123 -2.6065 -0.9607 H 0 0 0 0 0 0 0 0 0 0 0 0 -6.6646 -1.6319 0.4850 H 0 0 0 0 0 0 0 0 0 0 0 0 -7.3374 -1.0796 -1.0661 H 0 0 0 0 0 0 0 0 0 0 0 0 -3.0679 0.1395 -2.3380 H 0 0 0 0 0 0 0 0 0 0 0 0 -1.4113 0.8077 -0.9418 H 0 0 0 0 0 0 0 0 0 0 0 0 -4.0062 -0.5148 1.4219 H 0 0 0 0 0 0 0 0 0 0 0 0 -3.7200 0.9535 2.3376 H 0 0 0 0 0 0 0 0 0 0 0 0 -4.9916 1.0024 1.1350 H 0 0 0 0 0 0 0 0 0 0 0 0 -3.1814 2.0499 -1.6550 H 0 0 0 0 0 0 0 0 0 0 0 0 -4.7609 1.8902 -0.6983 H 0 0 0 0 0 0 0 0 0 0 0 0 -3.5675 3.1257 -0.3141 H 0 0 0 0 0 0 0 0 0 0 0 0 -1.5983 1.5011 3.1640 H 0 0 0 0 0 0 0 0 0 0 0 0 -2.4230 -2.4734 0.7569 H 0 0 0 0 0 0 0 0 0 0 0 0 -0.9938 -2.6828 -0.4045 H 0 0 0 0 0 0 0 0 0 0 0 0 -0.7556 -2.5467 1.3312 H 0 0 0 0 0 0 0 0 0 0 0 0 0.7551 -1.3747 0.7370 H 0 0 0 0 0 0 0 0 0 0 0 0 0.5820 -1.6610 -1.5147 H 0 0 0 0 0 0 0 0 0 0 0 0 0.1664 0.0232 -1.9131 H 0 0 0 0 0 0 0 0 0 0 0 0 2.7299 -1.1800 -1.8398 H 0 0 0 0 0 0 0 0 0 0 0 0 2.3181 0.5716 -1.9999 H 0 0 0 0 0 0 0 0 0 0 0 0 0.3287 2.6187 1.5259 H 0 0 0 0 0 0 0 0 0 0 0 0 0.6445 1.5924 2.9460 H 0 0 0 0 0 0 0 0 0 0 0 0 2.5153 2.0402 2.5783 H 0 0 0 0 0 0 0 0 0 0 0 0 2.8490 2.9264 0.9926 H 0 0 0 0 0 0 0 0 0 0 0 0 3.8561 1.8108 -0.7290 H 0 0 0 0 0 0 0 0 0 0 0 0 6.0236 -1.5753 -0.8701 H 0 0 0 0 0 0 0 0 0 0 0 0 6.7705 -1.8834 -3.3314 H 0 0 0 0 0 0 0 0 0 0 0 0 4.2499 1.4523 -3.3179 H 0 0 0 0 0 0 0 0 0 0 0 0 3.2751 -2.1584 0.0364 H 0 0 0 0 0 0 0 0 0 0 0 0 2.9306 -1.3676 1.6729 H 0 0 0 0 0 0 0 0 0 0 0 0 4.5037 -1.1640 0.9052 H 0 0 0 0 0 0 0 0 0 0 0 0 -2.5503 -2.1030 -2.7542 H 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0 2 3 1 0 3 4 2 0 3 5 1 0 5 6 1 0 6 7 1 0 7 8 1 0 7 9 1 0 7 10 1 0 10 11 2 0 10 12 1 0 12 13 1 0 13 14 2 0 13 15 1 0 15 16 1 1 15 17 1 0 17 18 1 0 18 19 1 0 19 20 1 0 20 21 1 0 21 22 2 0 22 23 1 0 21 24 1 0 24 25 1 0 25 26 2 0 25 27 1 0 27 28 1 0 28 29 1 0 29 30 1 0 30 31 2 0 31 32 1 0 32 33 1 0 20 34 1 1 5 35 1 0 15 6 1 0 22 17 1 0 33 29 2 0 23 12 1 0 28 20 1 0 1 36 1 0 1 37 1 0 1 38 1 0 5 39 1 6 6 40 1 6 8 41 1 0 8 42 1 0 8 43 1 0 9 44 1 0 9 45 1 0 9 46 1 0 12 47 1 1 16 48 1 0 16 49 1 0 16 50 1 0 17 51 1 1 18 52 1 0 18 53 1 0 19 54 1 0 19 55 1 0 23 56 1 0 23 57 1 0 24 58 1 0 24 59 1 0 28 60 1 6 30 61 1 0 31 62 1 0 33 63 1 0 34 64 1 0 34 65 1 0 34 66 1 0 35 67 1 0 M END

Standard InCHIKey	XEHMUYDSKXRHFC-POLOUJCESA-N
Standard InCHI	InChI=1S/C27H32O8/c1-25(2)20(19(29)24(32)33-5)27(4)16-6-8-26(3)17(14(16)10-15(21(25)30)22(27)31)11-18(28)35-23(26)13-7-9-34-12-13/h7,9,12,15-16,19-20,23,29H,6,8,10-11H2,1-5H3/t15-,16-,19+,20-,23-,26+,27+/m0/s1
SMILES	COC(=O)[C@@H]([C@H]1C(C)(C)C(=O)[C@H]2C(=O)[C@]1(C)[C@H]1CC[C@@]3(C(=C1C2)CC(=O)O[C@H]3c1ccoc1)C)O

Calculated Properties

Physi-Chem Properties

Molecular Weight:	484.21	Volume:	484.632 ? Van der Waals volume.
Dense:	0.999	LogP:	1.359 ? The logarithm of the n-octanol/water distribution coefficients.
logD7.4:	1.63 ? The logarithm of the n-octanol/water distribution coefficient at pH=7.4.	LogS:	-3.122 ? The logarithm of aqueous solubility value.
Rotatable Bonds:	4.0	Rigid Bonds:	29.0
TPSA:	120.11 ? Topological Polar Surface Area.	H-Bond Acceptor:	8.0
H-Bond Donor:	1.0	Rings:	5.0
Heavy Atoms:	8.0

MedChem Properties

QED Drug-Likeness Score:	0.394	GASA:	1.0 ? GASA represents the probability of being difficult to synthesize, ranging from 0 to 1.
Synthetic Accessibility Score:	5.931	Fsp³:	0.63
MCE-18:	126.0 ? MCE-18 stands for medicinal chemistry evolution.MCE-18≥45 is considered a suitable value.	Lipinski Rule-of-5:	Rejected
Pfizer Rule:	Rejected	GSK Rule:	Accepted
Golden Triangle Rule:	Rejected	BMS Rule:	0
Chelating Alert:	1	PAINS Alert:	0
Colloidal aggregators:	0.773	Fluc inhibitor:	0.001 ? The fluc inhibitor value is the probability of being fLuc inhibitors, within the range of 0 to 1.
Blue fluorescence:	0.24 ? The blue fluorescence value is the probability of being blue fluorescence, within the range of 0 to 1	Green fluorescence:	0.011 ? The green fluorescence value is the probability of being green fluorescence, within the range of 0 to 1
Reactive compounds:	0.019	Promiscuous compounds:	0.12

ADMET Properties (ADMETlab3.0)

ADMET: Absorption

Caco-2 Permeability:	-5.36	MDCK Permeability:	-4.936
Pgp-inhibitor:	0.256	Pgp-substrate:	0.082
PAMPA:	0.705 ? 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%):	0.036	30% Bioavailability (F30%):	0.02
50% Bioavailability (F50%):	0.317

ADMET: Distribution

Blood-Brain-Barrier Penetration (BBB):	0.002	MRP1:	0.996
Plasma Protein Binding (PPB):	92.602%	Volume Distribution (VD):	0.181
Fu:	6.365% ? The fraction unbound in plasms.	OATP1B1 inhibitor:	0.366
OATP1B3 inhibitor:	0.967	BCRP inhibitor:	0.033
BSEP inhibitor:	0.99

ADMET: Metabolism

CYP1A2-inhibitor:	0.046	CYP1A2-substrate:	0.1
CYP2C19-inhibitor:	0.359	CYP2C19-substrate:	0.001
CYP2C9-inhibitor:	0.0	CYP2C9-substrate:	0.0
CYP2D6-inhibitor:	0.0	CYP2D6-substrate:	0.372
CYP3A4-inhibitor:	0.998	CYP3A4-substrate:	0.609
CYP2B6-substrate:	0.0	CYP2C8-inhibitor:	0.65
HLM stability:	0.914 ? 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):

6.613

Half-life (T1/2):

1.102

ADMET: Toxicity

hERG Blockers:	0.012	hERG Blockers (10um):	0.064
Human Hepatotoxicity (H-HT):	0.747	Drug-induced Liver Injury (DILI):	0.97
AMES Toxicity:	0.365	Rat Oral Acute Toxicity:	0.782
Maximum Recommended Daily Dose:	0.633	Skin Sensitization:	0.96
Carcinogencity:	0.54	Eye Corrosion:	0.0
Eye Irritation:	0.835	Respiratory Toxicity:	0.237
Drug-induced Neurotoxicity:	0.296	Ototoxicity:	0.578
Hematotoxicity:	0.452	Drug-induced Nephrotoxicity:	0.953
Genotoxicity:	1.0	RPMI-8226 Immunitoxicity:	0.13
A549 Cytotoxicity:	0.057	Hek293 Cytotoxicity:	0.115
BCF:	0.609 ? 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:	3.407 ? 48 hour Tetrahymena pyriformis IGC50. The unit of IGC50 is -log10[(mg/L)/(1000*MW)].
LC50DM:	5.424 ? 48 hour Daphnia magna LC50. The unit of LC50DM is -log10[(mg/L)/(1000*MW)].	LC50FM:	4.711 ? 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
NPO6445	Xylocarpus moluccensis	Species	Meliaceae	Eukaryota	n.a.	n.a.	n.a.	PMID[20112995]
NPO6445	Xylocarpus moluccensis	Species	Meliaceae	Eukaryota	seeds	n.a.	n.a.	PMID[20146503]
NPO6445	Xylocarpus moluccensis	Species	Meliaceae	Eukaryota	seeds	Thai	n.a.	PMID[21733687]
NPO6445	Xylocarpus moluccensis	Species	Meliaceae	Eukaryota	seeds	n.a.	n.a.	PMID[22724531]
NPO6445	Xylocarpus moluccensis	Species	Meliaceae	Eukaryota	seeds	n.a.	n.a.	PMID[26114936]
NPO6445	Xylocarpus moluccensis	Species	Meliaceae	Eukaryota	n.a.	n.a.	n.a.	Database[COCONUT]
NPO6445	Xylocarpus moluccensis	Species	Meliaceae	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

Activity Type	# Activity
Activity	3

Activity Type	# Activity
Organism	3

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
NPT4696	Organism	Brontispa longissima	Brontispa longissima	Activity	=	20.7	%	DrugMatrix in vitro pharmacology data
NPT4696	Organism	Brontispa longissima	Brontispa longissima	Activity	=	69.3	%	PMID[10924165]
NPT4696	Organism	Brontispa longissima	Brontispa longissima	Activity	=	76.6	%	PMID[15497934]

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 NPC281258 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	9620
0.1-0.2	39201
0.2-0.3	812
0.3-0.4	186
0.4-0.5	26
0.5-0.6	6
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	0

Similarity Score	Similarity Level	Natural Product ID
0.7639	Intermediate Similarity	NPC142113
0.7342	Intermediate Similarity	NPC69028
0.6582	Remote Similarity	NPC178932
0.6279	Remote Similarity	NPC276551
0.619	Remote Similarity	NPC606471
0.6136	Remote Similarity	NPC470875
0.5833	Remote Similarity	NPC263432
0.5714	Remote Similarity	NPC469503
0.5581	Remote Similarity	NPC292389
0.5529	Remote Similarity	NPC475779
0.5455	Remote Similarity	NPC469338
0.5333	Remote Similarity	NPC469849

Similar Clinical/Approved Drugs

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

● The left chart: Distribution of similarity level between NPC281258 and all drugs/candidates.
● The right table: Most similar clinical/approved drugs (Tc>=0.5 or Top200).

range	Tanimoto Coefficient
0-0.1	3743
0.1-0.2	5381
0.2-0.3	26
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