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

Participants

Role	Name	HCID	Charge
Reactant	Cyclopropaneacetic acid	HCID 138440	—
Reactant	3-(L-alaninyl)amino-2,4-dioxo-1,5-bis-(2-methylpropyl)-2,3,4,5-tetrahydro-1H-1,5-benzodiazepine hydrochloride	HCID 23552766	—
Product	3-[N'-(Cyclopropylacetyl)-L-alaninyl]-amino-2,4-dioxo-1,5-bis-(2-methylpropyl)-2,3,4,5-tetrahydro-1H-1,5-benzodiazepine	HCID 86584977	—

Reaction Steps

Following General Procedure I above using cyclopropylacetic acid (Lancaster) 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 a white solid (melting point=190-191° C.). Purification was by flash chromatography eluting with CH2Cl2/EtOAc (1:1 gradient to 3:4) and a second flash chromatography eluting with EtOAc/Toluene (7:3). Rf=0.28 (EtOAc/Toluene, 7:3).

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US07390801B2
Source dataset	uspto-grants-2008_06
ORD ID	ord-f6e94e37444d443e8272583759656e1e
Source note	uspto-grants-2008_06