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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1504224Generated: November 2, 2026

1-Ethyl-3,3,5-trimethyl-7-[3-(3-nitropyridin-4-ylamino)propoxy]-1,5-dihydrobenzo[b][1,4]diazepine-2,4-dione → 7-[3-(3-Aminopyridin-4-ylamino)propoxy]-1-ethyl-3,3,5-trimethyl-1,5-dihydrobenzo[b][1,4]diazepine-2,4-dione

https://huagongshe.com/reaction/1504224

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Ethyl-3,3,5-trimethyl-7-[3-(3-nitropyridin-4-ylamino)propoxy]-1,5-dihydrobenzo[b][1,4]diazepine-2,4-dioneHCID 70657066—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
Product7-[3-(3-Aminopyridin-4-ylamino)propoxy]-1-ethyl-3,3,5-trimethyl-1,5-dihydrobenzo[b][1,4]diazepine-2,4-dioneHCID 6696116083.4%

Reaction Steps

10% Palladium on carbon(0.7 g) was added to a methanol solution (30 ml) of 1-ethyl-3,3,5-trimethyl-7-[3-(3-nitropyridin-4-ylamino)propoxy]-1,5-dihydrobenzo[b][1,4]diazepine-2,4-dione(1.8 g). The mixture was subjected to catalytic reduction at room temperature under normal pressure. The reaction mixture was subjected to celite filtration to remove the catalyst. The filtrate was condensed under reduced pressure to give the title compound(1.4 g) as an orange amorphous solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09212187B2
Source datasetuspto-grants-2015_12
ORD IDord-c1c2119cc6f84a899fcd82f861fe0453
Source noteuspto-grants-2015_12