cystothiazole A

CHEBI:65716 ·resolve ·ANTIFUNGAL ·EXACT SEEDED

An organonitrogen heterocyclic antibiotic that is 2,4'-bi-1,3-thiazole substituted by an isopropyl group at position 2' and a 3,5,7-trimethoxy-4-methyl-7-oxohepta-1,5-dien-1-yl group at position 4 (the 2E,4R,5S,6E stereoisomer). It is isolated from the culture broth of myxobacterium, Cystobacter fuscus, and exhibits antifungal and cytotoxic 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:25248
organonitrogen heterocyclic antibiotic CHEBI:25558
Label unavailable CHEBI:38418
Label unavailable CHEBI:47985
Label unavailable CHEBI:51702
Label unavailable CHEBI:64459

Chemical structure

Computed structure properties
Molecular formula	C20H26N2O4S2
Charge	0
Average mass	422.572 Da
Monoisotopic mass	422.1334 Da
Source	ChEBI
InChIKey	LRTJMINIVSPVMX-ZVJWTWILSA-N

SMILES

COC(=O)/C=C(/OC)[C@H](C)[C@H](/C=C/c1csc(-c2csc(C(C)C)n2)n1)OC

InChI

InChI=1S/C20H26N2O4S2/c1-12(2)19-22-15(11-28-19)20-21-14(10-27-20)7-8-16(24-4)13(3)17(25-5)9-18(23)26-6/h7-13,16H,1-6H3/b8-7+,17-9+/t13-,16+/m1/s1

Also called

methyl (2E,4R,5S,6E)-3,5-dimethoxy-4-methyl-7-[2'-(propan-2-yl)-2,4'-bi-1,3-thiazol-4-yl]hepta-2,6-dienoate (EXACT_SYNONYM)— chebi
(+)-cystothiazole A (EXACT_SYNONYM)— chebi
Cystothiazole A (EXACT_SYNONYM)— chebi
melithiazole E (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.

Activity roles

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

antimicrobial agent CHEBI:33281
antifungal agent CHEBI:35718

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:65716`	cystothiazole A	`antibioticmech:chebi-5c48b085f9`	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).

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