Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 255240Generated: October 29, 2026

Sodium cyanoborohydride → 6-[({1-[2-(6-Nitro-3-oxo-2,3-dihydro-4H-1,4-benzoxazin-4-yl)ethyl]piperidin-4-yl}amino)methyl]-2H-pyrido[3,2-b][1,4]oxazin-3(4H)-one

https://huagongshe.com/reaction/255240

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium cyanoborohydrideHCID 5003444—
Reactant3-Oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine-6-carbaldehydeHCID 21873737—
Reactant4-[2-(4-Aminopiperidin-1-yl)ethyl]-6-nitro-2H-1,4-benzoxazin-3(4H)-oneHCID 66774904—
Product6-[({1-[2-(6-Nitro-3-oxo-2,3-dihydro-4H-1,4-benzoxazin-4-yl)ethyl]piperidin-4-yl}amino)methyl]-2H-pyrido[3,2-b][1,4]oxazin-3(4H)-oneHCID 159818917%

Reaction Steps

4-[2-(4-Aminopiperidin-1-yl)ethyl]-6-nitro-2H-1,4-benzoxazin-3(4H)-one (Intermediate 81), 3-oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine-6-carbaldehyde (WO 2004/058144) and sodium cyanoborohydride were reacted as described under Example 21 to give the product as an off-white solid in 7% yield.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07875715B2
Source datasetuspto-grants-2011_01
ORD IDord-d79cf56747fe45939d3c43cf2c3431dd
Source noteuspto-grants-2011_01