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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1259427Generated: November 2, 2026

Cyclopentanesulfonyl chloride → HCID 52934560, compound

https://huagongshe.com/reaction/1259427

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCyclopentanesulfonyl chlorideHCID 3717197—
Reactant8-Amino-7-(2-fluoro-4-iodo-phenylamino)-6-methyl-2,3-dihydro-thiazolo[3,2-a]pyridin-5-oneHCID 58380585—
SolventPyridineHCID 1049—
ProductHCID 52934560HCID 52934560113.8%

Reaction Steps

Using the same reaction conditions and workup as described for the preparation of Example 19A, 8-amino-7-(2-fluoro-4-iodo-phenylamino)-6-methyl-2,3-dihydro-thiazolo[3,2-a]pyridin-5-one (I-19f: 0.2 g, 0.048 mmol) in pyridine (2 mL) was reacted with cyclopentanesulfonyl chloride (106 mg, 0.528 mmol) to afford the crude product. Purification by preparative HPLC afforded 0.03 g of the product (11% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08466289B2
Source datasetuspto-grants-2013_06
ORD IDord-eb7857df2d9441fbbf0fba2ef0bb31c8
Source noteuspto-grants-2013_06