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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1296805Generated: November 2, 2026

Water → HCID 178508970, compound

https://huagongshe.com/reaction/1296805

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantSodium AcetateHCID 517045—
Reactant1H-Pyrrolo[2,3-b]pyridine-3-carbaldehydeHCID 5372812—
Reactant(5Z)-5-[(3-cyclopentyloxy-4-methoxyphenyl)methylidene]-2-imino-1,3-thiazolidin-4-oneHCID 137629131—
SolventAcetic AcidHCID 176—
ProductHCID 178508970HCID 17850897082%

Reaction Steps

The suspension of 1H-pyrrolo[2,3-b]pyridine-3-carbaldehyde (example 1b, 200 mg, 1.4 mmol), pseudothiohydantoin (159 mg, 1.4 mmol), and sodium acetate (459 mg, 5.6 mmol) in acetic acid (2 mL) was stirred under reflux for 12 h. After cooling to room temperature, water was added. The solid was collected by filtration, washed with water and dried to obtain 2-amino-5-[1-(1H-pyrrolo[2,3-b]pyridin-3-yl)-meth-(Z)-ylidene]-thiazol-4-one (280 mg, 82%) as a slight yellow solid. LC-MS m/e 245 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07247727B2
Source datasetuspto-grants-2007_07
ORD IDord-8933953e4a4646c7b6a978d023ae779c
Source noteuspto-grants-2007_07