1243991. CNS depressants. IMPERIAL CHEMICAL INDUSTRIES Ltd. 4 Sept. 1969 [10 June 1968] No. 27501/68. Heading A5B. [Also in Division C2] Pharmaceutical compositions suitable for oral or parenteral administration and having depressant activity on the central nervous system and thymoleptic activity contain novel piperidine piperazine or morpholine derivatives of the formula wherein A is -O- -CH 2 - or =NCOR where R is H alkyl aryl halogenoaryl alkoxy aryloxy arolkloxy or amino and X is phenyl whi...