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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1739917Generated: October 26, 2026

Ethyl Acetate → N-[4-(4H-Pyrazolo[5,1-c][1,4]benzodiazepin-5(10H)-ylcarbonyl)-3-chlorophenyl]-2-methylbenzamide

https://huagongshe.com/reaction/1739917

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
ReactantDiisopropylethylamineHCID 81531—
Reactant4-[(2-Methylbenzoyl)amino]2-chlorobenzoyl chlorideHCID 10566710—
Reactant5,10-dihydro-4H-pyrazolo[5,1-c][1,4]benzodiazepineHCID 13062825—
SolventDichloromethaneHCID 6344—
ProductN-[4-(4H-Pyrazolo[5,1-c][1,4]benzodiazepin-5(10H)-ylcarbonyl)-3-chlorophenyl]-2-methylbenzamideHCID 21837051—

Reaction Steps

As described for Example 518, a mixture of 0.185 g of 5,10-dihydro-4H-pyrazolo[5,1-c][1,4]benzodiazepine, 0.369 g of 4-[(2-methylbenzoyl)amino]-2-chlorobenzoyl chloride and 0.158 g of diisopropylethylamine in 10 ml of dichloromethane is stirred at room temperature to give crystals (from ethyl acetate) m.p. 241-244° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05968937
Source datasetuspto-grants-1999_10
ORD IDord-3e7dbdfeffd544599e0d07dbc55bd051
Source noteuspto-grants-1999_10