PROCESS FOR PREPARING TRANS-DL-5 SUBSTITUTED 7-DAY SUBSTITUTED-4,4A, 5,6,7,8,8A, 9-OCTAHYDRO-1H (AND 2H) PYRAZOLO (3,4-G) CHINOLINES

摘要

A 1-substituted-3-permissibly-substituted-6-oxodecahydroquinoline is converted to the corresponding 7-formyl derivative and then, upon treatment with hydrazine, may be cyclized to a tautomeric mixture of 5-substituted-7-permissibly-substituted-4, 4a, 5, 6, 7, 8, 8a, 9-octahydro-1H (and 2H)-pyrazolo [3,4-g] quinolines.