Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2424351Generated: November 2, 2026

5-Chloro-2-thiophenecarboxylic acid → 5-Chloro-thiophene-2-carboxylic acid [3-((S)-2-amino-4-methyl-5,6-dihydro-4H-[1,3]oxazin-4-yl)-4-fluoro-phenyl]-amide

https://huagongshe.com/reaction/2424351

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Chloro-2-thiophenecarboxylic acidHCID 95048—
Reactant[(S)-4-(5-amino-2-fluoro-phenyl)-4-methyl-5,6-dihydro-4H-[1,3]oxazin-2-yl]-carbamic acid tert-butyl esterHCID 67234727—
Product5-Chloro-thiophene-2-carboxylic acid [3-((S)-2-amino-4-methyl-5,6-dihydro-4H-[1,3]oxazin-4-yl)-4-fluoro-phenyl]-amideHCID 53241345—

Reaction Steps

The coupling of [(S)-4-(5-amino-2-fluoro-phenyl)-4-methyl-5,6-dihydro-4H-[1,3]oxazin-2-yl]-carbamic acid tert-butyl ester from experiment F (R3=Me) and 5-chloro-thiophene-2-carboxylic acid followed by deprotection using procedure H yielded the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07964594B1
Source datasetuspto-grants-2011_06
ORD IDord-01e38700eff845d08b647e04bf525bc5
Source noteuspto-grants-2011_06