12- and 13-substituted ergoline derivatives having alpha.sub.2 -
12-aminopyridazinopyrroloisoquinoline compounds
12-Aryl prostaglandin analogs
12-Halogenated forskolin derivatives
12-halogenated forskolin derivatives
12-hetero substituted 6,11-ethano-6,11-dihydrobenzo (b) quinoliz
13,13A-Didehydroberbine derivatives
13,14-Didehydro-prostaglandins and process for their preparation
13,14-dihydroprostaglandin C-type derivatives
13-(substituted thio)acetoxymilbemycin derivatives, their prepar
13-alkyl-11.beta.-phenylgonanes
13-alkyl-11beta-phenylgonanes
13-alkyl-23-imino derivative of LL-F28249 compounds and their us
13-Aza prostaglandins for the treatment of glaucoma and...
13-aza-14-oxo-TXA.sub.2 analogues
13-dihydro-3′ aziridino anthracyclines
13-epi-avermectin derivatives useful as antiparasitic agents
13-halo-23-imino derivatives of LL-F28249 compounds and their us
13-Halomilbemycin derivatives, their preparation and composition
13-membered azalides and their use as antibiotic agents