19-01-1977 дата публикации
Номер: GB0001461834A
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... 1461834 Amino-substituted tetracyclic compounds AKZO NV 19 April 1974 [2 May 1973] 17343/74 Heading C2C Novel compounds I (X is O, S, NR 7 or CR 8 R 9 ; R 1 to R 4 are H, OH, halo, 1-6C alkyl, alkoxy or alkylthio or CF 3 ; R 5 and R 6 are H, 1-6C alkyl, or 7-10C aralkyl; or NR 5 R 6 is a 5-6 membered heterocyclic ring; R 7 is H or 1-4C alkyl; R 8 and R 9 are H or CH 3 ; n is 0, 1 or 2; and the dotted line indicates an optional band) and salts thereof are prepared by known methods. Compounds II are prepared by condensation of vinyl methyl ketone with a compound III Compounds II may be reduced, using LiAlH 4 , to give the corresponding 2-hydroxy derivatives. These may be converted by known methods to the corresponding 2-mesyloxy-2-azido-, and 2- cyano-derivatives. 2 - Cyanomethylidene - 1,2,3,4 - tetrahydrotribenzo(b,d,f)oxepine is prepared by reaction of the appropriate compound II with acetonitrile and sodium ethoxide. 2 - N,N - Dimethylcarbamyl - methyl - 1,2,3,4- tetrahydro - 9H - tribenzo ...
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