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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 628107Generated: October 30, 2026

1-Acetylpiperazine → 8-(4-acetylpiperazin-1-yl)-N-(2,4-difluorophenyl)-N-methyl-4H-thieno[3,2-c]chromene-2-carboxamide

https://huagongshe.com/reaction/628107

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-AcetylpiperazineHCID 83795—
Reactant8-bromo-N-(2,4-difluorophenyl)-N-methyl-4H-thieno[3,2-c]chromene-2-carboxamideHCID 57900337—
Product8-(4-acetylpiperazin-1-yl)-N-(2,4-difluorophenyl)-N-methyl-4H-thieno[3,2-c]chromene-2-carboxamideHCID 44241962—

Reaction Steps

Following Example 70 and General Procedure D, 8-bromo-N-(2,4-difluorophenyl)-N-methyl-4H-thieno[3,2-c]chromene-2-carboxamide 160bp and 1-acetylpiperazine were reacted to give 120bp. 1H NMR (400 MHz, CDCl3) δ 7.23 (m, 1H), 6.82-6.93 (m, 5H), 5.99 (s, 1H), 5.01 (s, 2H), 3.86 (m, 2H), 3.73 (m, 2H), 3.32 (s, 3H), 3.21 (m, 2H), 3.16 (m, 2H), 2.13 (s, 3H). LCMS (ESI) m/z: 484.1

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09309265B2
Source datasetuspto-grants-2016_04
ORD IDord-8ac38a7503fb470a9cbf5a96605a1738
Source noteuspto-grants-2016_04