Collect. Czech. Chem. Commun. 1980, 45, 529-538

10-[4-(3-Hydroxypropyl)piperazino]-8-methylsulfonyl-10,11-dihydrodibenzo[b,f]thiepin and some related potential metabolites of the neuroleptic agents oxyprothepin and methiothepin

Vladimír Valenta, Antonín Dlabač, Marie Bartošová, Emil Svátek and Miroslav Protiva

Research Institute for Pharmacy and Biochemistry, 130 00 Prague 3


Substitution reaction of 10-chloro-8-methylsulfonyl-10,11-dihydrodibenzo[b,f]thiepin with 1-(3-hydroxypropyl)piperazine afforded the title compound IV which was transformed by selective oxidation reactions to the sulfoxide X, N-oxide XII and N,S-dioxide XIII. The secondary amine VII was prepared via the carbamate VI and oxidized to the sulfoxide XI. Reaction of 10-chloro-8-methylsulfonyl-10,11-dihydrodibenzo[b,f]thiepin with ethylenediamine gave the diamine XIV which was oxidized to the corresponding sulfoxide XV. Compounds IV, VII and X-XV are potential metabolites of the neuroleptic agent oxyprothepin (II); compounds VII, XI, XIV and XV are potential metabolites of methiothepin (I). Out of the compounds prepared, only the title compound IV preserves the neuroleptic character.