Abstract
A series of 3-aminomethyl-1, 2-dihydronaphthalene derivatives (6-22) was prepared from the corresponding 3, 4-dihydro-1 (2H)-naphthalenone derivatives (24a-q) in three steps, namely the Mannich reaction, reduction of the carbonyl group with sodium borohydride, and dehydration with ethanolic hydrogen chloride. Compounds 6-22 and several related analogs (23, 27-30) were tested for vasodilating and antihypertensive activities. Potent cerebral vasodilating and antihypertensive activities were exhibited by 1-benzhydryl-4-(7-disubstituted amino-1, 2-dihydro-3-naphthyl) methylpiperazines (16, 18 and 19).
