Water → HCID 70111903, compound

Participants

Reaction Steps

To a suspension of (3aR*,10aS*)-9-benzyl-4-((3-hydroxyphthalimido)acetyl)-2,3,3a,4,9,10a-hexahydrobenzo[b]cyclopenta[e][1,4]diazepin-10(1H)-one (343 mg, 0.69 mmol) in N,N-dimethylformamide (3 mL) were added potassium carbonate (115 mg, 0.83 mmol) and methyl iodide (0.10 mL, 1.6 mmol). The mixture was stirred for 4.5 hours at room temperature, to which was added water. The resulting solid was separated by filtration, and the filtrate was subjected to extraction with chloroform. In this organic layer was dissolved the solid previously separated by filtration. The solution was dried over magnesium sulfate, which was subjected to filtration. The filtrate was concentrated under reduced pressure. The concentrate was recrystallized from chloroform-diethylether to give 340 mg (yield 96%) of the titled compound, m.p. 247°-248° C.

Provenance & Evidence