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Francis G. Fang, Andover US

Francis G. Fang, Andover, MA US

Patent application numberDescriptionPublished
20090187038REAGENTS AND METHODS FOR THE BETA-KETO AMIDE SYNTHESIS OF A SYNTHETIC PRECURSOR TO IMMUNOLOGICAL ADJUVANT E6020 - This invention relates to the synthesis for a precursor of E6020, compound 26, via a β-keto amide alcohol intermediate, compound 22. The synthesis reacts compound 22 with compound 25 and the resultant intermediate is oxidized to produce compound 26, the precursor to E6020. Compounds 22 and 25, and their crystalline forms, represent separate embodiments of the invention. The invention also relates to compounds of formulas (3) and (4) and processes for their preparation.07-23-2009
20090198074INTERMEDIATES AND METHODS FOR THE SYNTHESIS OF HALICHONDRIN B ANALOGS - Methods of synthesizing intermediates useful for the synthesis of halichondrin B analogs are described.08-06-2009
20100093842Laulimalide Analogs and Uses Thereof - The present invention provides compounds having formula I:04-15-2010
20100197951COMPOUNDS FOR PREPARING IMMUNOLOGICAL ADJUVANT - The present invention provides methods for preparing TLR-4 receptor agonist E6020:08-05-2010
20110046398INTERMEDIATES IN THE SYNTHESIS ZEARALENONE MACROLIDE ANALOGS - Disclosed herein are methods and intermediates useful in the preparation of macrolides, e.g., compounds of formula (IV), wherein R02-24-2011
20110060151REAGENTS AND METHODS FOR THE BETA-KETO AMIDE SYNTHESIS OF A SYNTHETIC PRECURSOR TO IMMUNOLOGICAL ADJUVANT E6020 - This invention relates to the synthesis for a precursor of E6020, compound 26, via a β-keto amide alcohol intermediate, compound 22. The synthesis reacts compound 22 with compound 25 and the resultant intermediate is oxidized to produce compound 26, the precursor to E6020. Compounds 22 and 25, and their crystalline forms, represent separate embodiments of the invention. The invention also relates to compounds of formulas (3) and (4) and processes for their preparation.03-10-2011
20110172427PROCESS FOR PREPARING CERTAIN CINNAMIDE COMPOUNDS - This invention relates to a new synthesis, intermediates and precursors leading to a mixture of the compounds 11 and 12 as shown below. It also relates to the resolution of the stereoisomeric mixture to provide in substantial stereochemical purity compound 12. The synthesis of the invention involves preparation of compound 7 and compound 10 as shown below and their reaction to prepare a mixture of compound 11 and compound 12.07-14-2011
20110184190COMPOUNDS USEFUL IN THE SYNTHESIS OF HALICHONDRIN B ANALOGS - In general, the invention features compounds useful for the synthesis of analogs of halichondrin B, such as eribulin or pharmaceutically acceptable salts thereof, e.g., eribulin mesylate. Exemplary compounds are of formula (I), (II), or (III):07-28-2011

Patent applications by Francis G. Fang, Andover, MA US