equisetin

CHEBI:142135 ·resolve ·ANTIBACTERIAL ·EXACT SEEDED

A member of the class of tetramic acids that is trichosetin in which the hydrogen attached to the lactam nitrogen has been replaced by a methyl group. It is produced by the filamentous fungus Fusarium heterosporum. — 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:138397
Label unavailable CHEBI:140155
Label unavailable CHEBI:15734
Label unavailable CHEBI:33823

Chemical structure

Computed structure properties
Molecular formula	C22H31NO4
Charge	0
Average mass	373.493 Da
Monoisotopic mass	373.22531 Da
Source	ChEBI
InChIKey	QNQBPPQLRODXET-HMHJLHGTSA-N

SMILES

[H][C@@]12CC[C@@H](C)C[C@@]1([H])C=C[C@@]([H])(/C=C/C)[C@@]2(C)/C(O)=C1\C(=O)[C@H](CO)N(C)C1=O

InChI

InChI=1S/C22H31NO4/c1-5-6-15-9-8-14-11-13(2)7-10-16(14)22(15,3)20(26)18-19(25)17(12-24)23(4)21(18)27/h5-6,8-9,13-17,24,26H,7,10-12H2,1-4H3/b6-5+,20-18-/t13-,14-,15-,16-,17+,22-/m1/s1

Also called

(3Z,5S)-3-[{(1S,2R,4aS,6R,8aR)-1,6-dimethyl-2-[(1E)-prop-1-en-1-yl]-1,2,4a,5,6,7,8,8a-octahydronaphthalen-1-yl}(hydroxy)methylidene]-5-(hydroxymethyl)-1-methylpyrrolidine-2,4-dione (EXACT_SYNONYM)— chebi
(−)-equisetin (EXACT_SYNONYM)— chebi
N-methyltrichosetin (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.

Patents and articles

Documents about this compound. A patent covers a class and an article covers a topic; neither identifies a structure.

patent:US3959468

Activity roles

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

antibacterial agent CHEBI:33282
HIV-1 integrase inhibitor CHEBI:67268

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:142135`	equisetin	`antibioticmech:chebi-675644a2ca`	2026-08-30

Mechanism summary

Mode of action: VIRAL_INTEGRASE_INHIBITION microbial target — Assigned from ChEBI role CHEBI:67268 (HIV-1 integrase inhibitor). ChEBI asserts the role on the compound, but this mechanism belongs to an anti-viral activity while the record is filed as ANTIBACTERIAL. Either the compound has both activities, or the filing is wrong — the priority table has put azole antifungals under ANTIBACTERIAL before now. A curator should decide which. The role names a target specific to the microbe or virus — see mode_of_action_target_scope. Not a curator's mechanistic review.

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
RESEEDED_FROM_SOURCES 2026-08-30 · seed_from_sources
Re-seeded from updated data/raw/ inventories
RESEEDED_FROM_SOURCES 2026-09-10 · 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).

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