N-Phthaloylglycine → HCID 67713329, compound

Participants

Reaction Steps

A solution of 1.0 g (4.9 mmol) of N-phthaloylglycine in 8 ml of dimethylformamide was treated at room temperature with 0.83 g is (5.11 mmol) of 1,1'-carbonyldiimidazole and the mixture was subsequently heated to 50°. After 30 minutes the mixture was cooled to room temperature, 1.5 g (5 mmol) of (S)-10,11,12,12a-tetrahydro-8-oxo-8H-imidazo[5,1-c]pyrrolo[1,2-a]thieno[3,2-e][1,4]diazepine-1-carboxylic acid hydrazide were added thereto and the mixture was stirred at room temperature for 12 hours. The suspension obtained was filtered and the colourless powder obtained was washed with ethanol and diethyl ether. There were obtained 2.2 g (100%) of (S)-N'-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-ylacetyl)-8-oxo-10,11,12,12a-tetrahydro-8H-imidazo[5,1-c]pyrrolo[1,2-a]thieno[3,2-e][1,4]diazepine-1-carboxylic acid hydrazide of m.p. >260°.

Provenance & Evidence