The invention provides compounds of the formula: ##STR00001## wherein (a) is a single or double bond; W is CH, CH.sub.2, CHCH.sub.3, C(CH.sub.3).sub.2, C(CH.sub.2).sub.2 or C(CH.sub.2).sub.3; X is N; and Y is H or F, and salts, hydrates, tautomers, pure enantiomers, and enantiomeric mixtures; and a method of treating schizophrenia comprising administering same.
This application is a divisional application of U.S. patent application Ser. No. 10/531,587 filed Apr. 18, 2005, now U.S. Pat. No. 7,163,957, which is the U.S. national stage of International Appln. No. PCT/FR2003/003053, filed Oct. 16, 2003 which claims priority under 35 U.S.C. .sctn.119 of French Patent Appln. No. 02/12854, filed Oct. 16, 2002, said applications being incorporated by reference herein in their entireties and relied upon.
