摘要:
7-Oxa steroids which may be substituted in the 3-position with a hydroxy or oxo group or in the 2-position with a hydroxymethylene group or in the 2- and 3-positions with a substituent that forms a 5-membered heterocyclic ring, useful as antigonadotropic agents and a method of preparing these 7-oxa steroids from 3-hydroxy Delta 5-steroids including intermediates in this process.
摘要:
A new antibiotic, designated as antibiotic 1745A/X, is produced by the fermentation of the known microorganism Streptomyces antibioticus, ATCC 11891, using the novel compound erythronolide A oxime as the substrate. This new antibiotic is useful as an antibacterial agent.
摘要:
Ester and amide derivatives of threo-hydroxycitric acid gamma lactone inhibit fatty acid synthesis in biological systems and are useful in the treatment of obesity and in correcting conditions of lipid abnormalities.
摘要:
A PROCESS FOR PRODUCING 4,6-DIHALO-16-ALKYLIDENE PREGNA-4,6-DIENE-3,20-DIONES USEFUL AS PROGESTATIONAL AGENTS FROM A 16A,17A-EPOXY-3-ALKANOYLOXY-16-ALKYL-PREGN-5-EN20-ONE, AND INTERMEDIATES THEREOF.
摘要:
A PROCESS FOR PRODUCING 4,6-DICHLORO-16-ALKYLIDENE PREGNA-4,6-DIENE-3,20-DIONES USEFUL AS PROGESTATIONAL AGENTS FROM 3-LOWER ALKANOYLOXY-17-HYDROXY-16-ALKYLIDENE-PREGN-5-EN-20-ONES, AND INTERMEDIATES THEREIN.
摘要:
This invention relates to a process for the preparation of 2alkenyl-4-hydroxy-3-methyl-2-cyclopenten-1-ones from a 2-alkenyl or 2-alkynyl-3-methyl-2-cyclopenten-1-one and intermediates therein.
摘要:
THIS INVENTION RELATES TO 17-HYDROXY-16-OXA ANDROSTAN3-ONES, INTERMEDIATES THEREFOR AND PROCESSES FOR MAKING THE SAME. THESE COMPOUNDS CAN BE PREPARED FROM THE CORRESPONDING D-RING LACTONES WHEREIN THE 3-CARBONYL SUBSTITUTENT IS PROTECTED, I.E., 16-OXA-ANDROSTAN-17-ONES. THE SUBJECT COMPOUNDS ARE PHARMACEUTICALLY USEFUL AS ANTI-ANDROGENS.