2,3,3a,12b-Tetrahydro-8H-dibenzo[3,4;6,7]cyclohept[1,2-d]oxaoles and dibenzo[a,d]cyclohept[1,4]dienes bearing, for example, substituents at the 10- and 11-positions, are prepared, inter alia, from the corresponding dibenzocycloheptatrienones. The products are useful as antidepressants.
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a division of U.S. Pat. Ser. No. 114,718, filed Feb. 11, 1971, now U.S. Pat. No. 3,705,168, issued Dec. 5, 1972 which in turn is a division of U.S. Pat. Ser. No. 838,317, filed July 1, 1969, now U.S. Pat. No. 3,586,718, issued June 22, 1971 which in turn is a division of U.S. Pat. Ser. No. 517,893, filed Jan. 3, 1966, now U.S. Pat. No. 3,478,048, patented Nov. 11, 1969.
10-Substituted 5-cyanomethylene-dibenzo[a,d]-cycloheptenes, their pure cis- and trans-isomers, their N-oxides and their pharmaceutically tolerated addition salts with acids, processes for their preparation, therapeutic agents containing these compounds and their use as drugs, especially as sedatives, hypnotics or tranquilizers.
