Potentially carcinogenic cyclopenta[a]phenanthrenes. Part V. Synthesis of 15,16-dihydro-7-methylcyclopenta[a]phenanthren-17-one
Abstract
15,16-Dihydro-7-methylcyclopenta[a]phenanthren-17-one has been prepared by sodium and liquid ammonia reduction of the diethyl phosphate of its readily available 11-hydroxy-derivative.