Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 589066Generated: October 31, 2026

N-methyl-5-nitro-3-pyridin-2-yl-3,4-dihydro-2H-1,4-benzoxazine-3-carboxamide → 5-amino-N-methyl-3-pyridin-2-yl-3,4-dihydro-2H-1,4-benzoxazine-3-carboxamide

https://huagongshe.com/reaction/589066

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN-methyl-5-nitro-3-pyridin-2-yl-3,4-dihydro-2H-1,4-benzoxazine-3-carboxamideHCID 90409054—
ReactantHCID 178418361HCID 178418361—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
Product5-amino-N-methyl-3-pyridin-2-yl-3,4-dihydro-2H-1,4-benzoxazine-3-carboxamideHCID 90409074100%

Reaction Steps

N-Methyl-5-nitro-3-pyridin-2-yl-3,4-dihydro-2H-1,4-benzoxazine-3-carboxamide (25 mg, 0.080 mmol) was dissolved in methanol (5 mL) in a Parr bottle and degassed with nitrogen, followed by addition of palladium (10% on carbon) (5 mg, 0.05 mmol). The reaction vessel was charged to 50 PSI hydrogen and shaken for 2 h. The reaction mixture was filtered and concentrated in vacuo to give crude 5-amino-N-methyl-3-pyridin-2-yl-3,4-dihydro-2H-1,4-benzoxazine-3-carboxamide (0.005 g. 100%). LCMS calculated for C15H17N4O2 (M+H)+: m/z=285.1. found: 285.0.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09227985B2
Source datasetuspto-grants-2016_01
ORD IDord-b216ea7eb2c14398b699d4f9df054a40
Source noteuspto-grants-2016_01