反应详情

When an equivalent amount of 2-bromo-benzo[b]cycloheptanone or 2-bromo-8-methoxy-benzo[b]cycloheptanone is substituted for the 2-bromo-α-tetralone in step A of example 1 above, there is obtained following the processes of steps A of example 1 and B above, 3-(4-pyridyl)-2,4,5,6-tetra-hydrobenzo[6,7]-cyclohepta[1,2-c]pyrazole(m.p. 217°-219°C) or 9-methoxy-3-(4-pyridyl)-2,4,5,6-tetrahydrobenzo[6,7]cyclohepta [1,2-c]pyrazole (m.p. 200°-201°C) respectively.

1. customis obtained