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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 38607Generated: October 23, 2026

n,n-Dimethylpiperazine-1-carboxamide → 4-[(2E)-4-{4-[(3-Chloro-5-hydroxyphenyl)amino]-5,8-dihydropyrido[4',3':4,5]thieno[2,3-d]-pyrimidin-7(6H)-yl}-4-oxobut-2-en-1-yl]-N,N-dimethylpiperazine-1-carboxamide

https://huagongshe.com/en/reaction/38607

Reaction equation

Participants

RoleNameHCIDCharge
Reactantn,n-Dimethylpiperazine-1-carboxamideHCID 712909—
Reactant4-Bromocrotonic acidHCID 6436411—
Reactant3-Chloro-5-(5,6,7,8-tetrahydropyrido[4',3':4,5]thieno[2,3-d]pyrimidin-4-ylamino)phenol hydrochlorideHCID 66850088—
Product4-[(2E)-4-{4-[(3-Chloro-5-hydroxyphenyl)amino]-5,8-dihydropyrido[4',3':4,5]thieno[2,3-d]-pyrimidin-7(6H)-yl}-4-oxobut-2-en-1-yl]-N,N-dimethylpiperazine-1-carboxamideHCID 58116972—

Reaction Steps

In analogy to Example 130, the title compound was prepared from (2E)-4-bromobut-2-enoic acid (84 mg, 0.41 mmol), 3-chloro-5-(5,6,7,8-tetrahydropyrido[4′,3′:4,5]thieno[2,3-d]pyrimidin-4-ylamino)phenol hydrochloride from Example 65A (100 mg, 0.27 mmol) and N,N-dimethylpiperazine-1-carboxamide (68 mg, 0.43 mmol) to yield 59 mg (38%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08524722B2
Source datasetuspto-grants-2013_09
ORD IDord-1ba13dacd352496a8ab6b199f4a36e8f
Source noteuspto-grants-2013_09