反应详情

Prepared analogously to Example 18 by reacting 5,11-dihydro-5-(phenylmethyl)-6H-pyrido[2,3-b][1,4]benzodiazepin-6-one with 1-bromo-7-(1-piperidinyl)-heptane in the presence of sodium hydride and dimethylformamide and subsequent acidolytic cleaving of the phenylmethyl group by heating with 80% polyphosphoric acid in the presence of phenol. Yield: 17% of theory. Colourless crystals m.p. 118°-120° C. (after recrystallisation from diisopropyl ether and cyclohexane).

1. customPrepared analogously to Example 18