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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1941809Generated: October 30, 2026

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

https://huagongshe.com/reaction/1941809

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Fluoromethoxypyridine-2-carboxylic acidHCID 57475870—
Reactant(R)-4-(5-amino-2-fluoro-phenyl)-5,5-difluoro-4,6,6-trimethyl-5,6-dihydro-4H-[1,3]oxazin-2-ylamineHCID 58304251—
Product5-Fluoromethoxy-pyridine-2-carboxylic acid [3-((R)-2-amino-5,5-difluoro-4,6,6-trimethyl-5,6-dihydro-4H-[1,3]oxazin-4-yl)-4-fluoro-phenyl]-amideHCID 53240501—

Reaction Steps

The condensation of (R)-4-(5-amino-2-fluoro-phenyl)-5,5-difluoro-4,6,6-trimethyl-5,6-dihydro-4H-[1,3]oxazin-2-ylamine (intermediate XI-2) and 5-fluoromethoxy-pyridine-2-carboxylic acid (CAS1174321-03-9, WO2009091016) following procedure I yielded the title compound as a white solid. MS (ISP): m/z=441.3 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08389513B2
Source datasetuspto-grants-2013_03
ORD IDord-6a5d3254f17640998e1d9b838ad66fc1
Source noteuspto-grants-2013_03