Organic compounds -- part of the class 532-570 series inventions

20090275766 - Process for the preparation of tigecycline in the amorphous form: P

20090275767 - Process for synthesis of androstane 17-beta carbothioic acid and relative compounds thereof: wherein R1 represents hydrogen or haloalkyl groups, R2 represents C1-8 linear alkyl groups, C1-8 branched alkyl groups, C1-6 unsaturated acyclic groups or aromatic groups, R3 represents hydrogen or hydroxyl, R4 represents hydrogen, bromine, chlorine or fluorine and R5 represents hydrogen, bromine, chlorine or fluorine. The process is a one-pot reaction.... Agent: Pai Patent & Trademark Law Firm

20090275768 - Preparation of paricalcitol: This invention relates to a method for purifying Paricalcitol by reverse phase chromatography. This invention also relates to a purified Paricalcitol prepared by said method. This invention further relates to a method for purifying Paricalcitol by crystallization.... Agent: Wpat, PC Intellectual Property Attorneys

20090270642 - Preparation of bile acids and intermediates thereof: Synthetic methods for preparing deoxycholic acid and intermediates thereof are provided.... Agent: Foley & Lardner LLP