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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 129725Generated: October 23, 2026

L-(+)-Cysteine → HCID 14881543, compound

https://huagongshe.com/en/reaction/129725

Reaction equation

Participants

RoleNameHCIDCharge
ReactantL-(+)-CysteineHCID 5862—
Reactant3-QuinolinecarboxaldehydeHCID 83641—
SolventEthanolHCID 702—
ProductHCID 14881543HCID 1488154375%

Reaction Steps

Quinoline-3-carbaldehyde (1.57 g) and 1.21 g of L-cysteine were dissolved in 50 ml of 50% ethanol, and the solution was stirred at room temperature for 1 hour. The resultant crystalline precipitate was collected by suction filtrating, washed with 50% ethanol and dried to give 1.95 g of 2-(3-quinolyl)thiazolidine-4-carboxylic acid. Melting point 173°-175° C. (decomposition).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05470851
Source datasetuspto-grants-1995_11
ORD IDord-57fd1430ce8949a6a7d3214a55e2af97
Source noteuspto-grants-1995_11