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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2111287Generated: November 1, 2026

Ethanol → 4-(9-cyclopentyl-5-methyl-6-oxo-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-ylamino)-3-methoxybenzoic acid

https://huagongshe.com/reaction/2111287

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
Reactant2486-69-3HCID 288057—
Reactant2-Chloro-9-cyclopentyl-5-methyl-5,7,8,9-tetrahydro-pyrimido[4,5-b][1,4]diazepin-6-oneHCID 57940526—
CatalystHydrochloric AcidHCID 313—
SolventWaterHCID 962—
Product4-(9-cyclopentyl-5-methyl-6-oxo-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-ylamino)-3-methoxybenzoic acidHCID 4261024070.9%

Reaction Steps

A mixture of 0.135 g (0.00048 mole) of 2-chloro-9-cyclopentyl-5-methyl-5,7,8,9-tetrahydro-pyrimido[4,5-b][1,4]diazepin-6-one (VII-10), 0.096 g (0.00058 mole) of 4-amino-3-methoxy-benzoic acid, 1 mL of ethanol, 3 mL of water, and 2 drops of hydrochloric acid was heated at 100 degrees overnight. Upon cooling, a precipitate formed which was collected by filtration to give 0.14 g of 4-(9-cyclopentyl-5-methyl-6-oxo-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-yl amino)-3-methoxy-benzoic acid (I-10) as an off-white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07517873B2
Source datasetuspto-grants-2009_04
ORD IDord-a29717a3ba234667b5cc2cc1db43ff97
Source noteuspto-grants-2009_04