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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 405722Generated: October 30, 2026

5-(Difluoromethyl)pyridine-2-carboxylic acid → 5-Difluoromethyl-pyridine-2-carboxylic acid [3-((4R,5R)-2-amino-5-fluoro-4-methyl-5,6-dihydro-4H-[1,3]oxazin-4-yl)-4-fluoro-phenyl]-amide

https://huagongshe.com/reaction/405722

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-(Difluoromethyl)pyridine-2-carboxylic acidHCID 23145481—
Reactant(4R,5R)-4-(5-amino-2-fluoro-phenyl)-5-fluoro-4-methyl-5,6-dihydro-4H-[1,3]oxazin-2-ylamineHCID 86672004—
Product5-Difluoromethyl-pyridine-2-carboxylic acid [3-((4R,5R)-2-amino-5-fluoro-4-methyl-5,6-dihydro-4H-[1,3]oxazin-4-yl)-4-fluoro-phenyl]-amideHCID 66558688—

Reaction Steps

The condensation of (4R,5R)-4-(5-amino-2-fluoro-phenyl)-5-fluoro-4-methyl-5,6-dihydro-4H-[1,3]oxazin-2-ylamine (intermediate A8.2) and 5-difluoromethyl-pyridine-2-carboxylic acid following procedure I yielded the title compound as a white foam. MS (ISP): m/z=397.3 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08754075B2
Source datasetuspto-grants-2014_06
ORD IDord-a47751925e8c4c2ca665b7329376b81c
Source noteuspto-grants-2014_06