1.beta.,7,8-trihydroxy vitamin D.sub.2, 1.smallcircle.,7,8-trihy

10 Oxo-4,5-dihydro-10H-benzo 5,6 cycloheph[1,2-B]pyrryls

10,10a-Dihydro-1H-thiozino[4,3-a,]-indole-1,4(3H)-diones

10,11-Dihydro-11-oxodibenzo[b,f]thiepin compounds

10,11-Dihydro-5H-dibenzo[a,d]cyclohepten-5,10-imines

10,11-methylenedioxy camptothecins

10-deacetyl-14.beta.-hydroxybaccactine III derivatives, a proces

10-desacetoxytaxol derivatives

10B-Azafluoranthene derivatives and precursors thereof

10H-1-Alkyl-10-oxabenzo,5,6 cyclohepta[1,2-G]pyrrole-2-acetic ac

11 .beta.-phenyl-gonanes, their manufacture and pharmaceutical p

11 beta-substituted-19 nor-steroids

11—[ (Z) -3- (dimethylamino) propylidene]—6,...

11-(Lower-alkoxy- and lower-alkylthio-3-oxo-lower-alkyl)-hexahyd

11-Desoxy-16-aryloxy-.omega.-tetranorprostaglandins

11-Lower-alkyl-, 11-phenyl-lower-alkyl- and 11-cyclo-lower-alkyl

11-substituted 5H,11H-pyrrolo(2,1-C) (1,4)benzoxazepines as anti

11-Substituted hexahydro-2,6-methano-3-benzazocines

11-[3-Oxo-.omega.-(2- and 3-furyl)-lower-alkyl]hexahydro-2,6-met

11.beta.,17.alpha.-Dihydroxy-17.beta.-cyano-androstanes