3-O-methylcalopocarpin

CHEBI:66369 ·resolve ·ANTIVIRAL ·EXACT SEEDED

A member of the class of pterocarpans that is (6aR,11aR)-pterocarpan substituted by a hydroxy group at position 9, a methoxy group at position 3 and a prenyl group at position 2. Isolated from Erythrina glauca and Erythrina burttii, it exhibits anti-HIV activity. — ChEBI

Machine-generated and unreviewed. Identity, structure and cross-references come straight from ChEBI's and CARD's own data; no curator has signed off on this record yet.

Classification

Strictly broader compounds or drug classes this molecule belongs to.

Label unavailable CHEBI:26377
Label unavailable CHEBI:33853
Label unavailable CHEBI:35618

Chemical structure

Computed structure properties
Molecular formula	C21H22O4
Charge	0
Average mass	338.403 Da
Monoisotopic mass	338.15181 Da
Source	ChEBI
InChIKey	FZFGGNNUYSILSL-UWJYYQICSA-N

SMILES

[H][C@@]12COc3cc(OC)c(CC=C(C)C)cc3[C@]1([H])Oc1cc(O)ccc12

InChI

InChI=1S/C21H22O4/c1-12(2)4-5-13-8-16-19(10-18(13)23-3)24-11-17-15-7-6-14(22)9-20(15)25-21(16)17/h4,6-10,17,21-22H,5,11H2,1-3H3/t17-,21-/m0/s1

Also called

(6aR,11aR)-3-methoxy-2-(3-methylbut-2-en-1-yl)-6a,11a-dihydro-6H-[1]benzofuro[3,2-c]chromen-9-ol (EXACT_SYNONYM)— chebi
9-hydroxy-3-methoxy-2-prenylpterocarpan (EXACT_SYNONYM)— chebi
Orientanol B (EXACT_SYNONYM)— chebi

Cross-references

Identifiers for this same structure in other resources. An accession that lands on two different structures in this corpus is withheld from both rather than shown here, since it names at most one of them.

hmdb:HMDB0031633
reaxys:7945641

Activity roles

Every antimicrobial role a source asserts for this compound — the unreduced evidence behind its antimicrobial_class.

anti-HIV agent CHEBI:64946

Source concepts

Every upstream concept that resolved to this record. The merge is the product: this is what shows ChEBI and CARD are describing the same structure.

Upstream concepts merged into this record
Source	Native ID	Label	Minted CURIE	Version
CHEBI	`CHEBI:66369`	3-O-methylcalopocarpin	`antibioticmech:chebi-943cefbbe2`	2026-08-30

Curation history

SEEDED_FROM_SOURCES 2026-08-30 · seed_from_sources
Seeded from data/raw/ inventories (CHEBI)
RESEEDED_FROM_SOURCES 2026-08-30 · seed_from_sources
Re-seeded from updated data/raw/ inventories
RESEEDED_FROM_SOURCES 2026-08-30 · seed_from_sources
Re-seeded from updated data/raw/ inventories

Provenance

Seeded by scripts/seed_from_sources.py from the committed inventories in data/raw/. View the record (YAML).

Explore across X-Mech: MediaIngredientMech (3-O-methylcalopocarpin) · CultureMech · NaturalProductMech · PathwayMech · TraitMech