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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 53551Generated: October 26, 2026

Acetic Anhydride → 2-(3Acetoxypyrrolidin-1-yl)-5,11-dihydro-11-ethyl-4-methyl-6H-dipyrido[3,2-b:2',3'-e][1,4]diazepin-6-one

https://huagongshe.com/reaction/53551

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AnhydrideHCID 7918—
Reactant11-Ethyl-2-(3-hydroxypyrrolidin-1-yl)-4-methyl-5,11-dihydro-6H-dipyrido[2,3-e:3',2'-b][1,4]diazepin-6-oneHCID 463549—
Product2-(3Acetoxypyrrolidin-1-yl)-5,11-dihydro-11-ethyl-4-methyl-6H-dipyrido[3,2-b:2',3'-e][1,4]diazepin-6-oneHCID 19960044—

Reaction Steps

The title compound, m.p. 188°-189.5° C., was synthesized from 5,11-dihydro-11-ethyl-2-(3- hydroxypyrrolidin-1-yl)-4-methyl-6H-dipyrido[3,2-b:2',3'-e][1,4]diazepin-6-one and acetic anhydride using procedures analogous to those described above. The product was chromatographed over silica gel with ethyl acetate/hexane, and was then crystallized from diisopropyl ether.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05620974
Source datasetuspto-grants-1997_04
ORD IDord-714d3c071a134c8c86a36f750db1d7fb
Source noteuspto-grants-1997_04