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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 433435Generated: October 27, 2026

Cyclopentylacetic acid → 3-[N'-(Cyclopentylacetyl)-L-alaninyl]amino-2,4-dioxo-1,5-bis-(2-methylpropyl)-2,3,4,5-tetrahydro-1H-1,5-benzodiazepine

https://huagongshe.com/reaction/433435

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCyclopentylacetic acidHCID 71606—
Reactant3-(L-alaninyl)amino-2,4-dioxo-1,5-bis-(2-methylpropyl)-2,3,4,5-tetrahydro-1H-1,5-benzodiazepine hydrochlorideHCID 23552766—
Product3-[N'-(Cyclopentylacetyl)-L-alaninyl]amino-2,4-dioxo-1,5-bis-(2-methylpropyl)-2,3,4,5-tetrahydro-1H-1,5-benzodiazepineHCID 22984229—

Reaction Steps

Following General Procedure I above using cyclopentylacetic acid (Aldrich) and 3-(L-alaninyl)amino-2,4-dioxo-1,5-bis-(2-methylpropyl)-2,3,4,5-tetrahydro-1H-1,5-benzodiazepine hydrochloride (Example 8-S), the title compound was prepared as an amorphous white solid. Purification was by flash chromatography eluting with CH2Cl2/EtOAc (1:1). Rf=0.31 (CH2Cl2/EtOAc, 1:1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06667305B1
Source datasetuspto-grants-2003_12
ORD IDord-13241e70f4a24f9fa79e9c3c3cdaf6ae
Source noteuspto-grants-2003_12