160009-35-8Relevant articles and documents
Preparation of [6-isopropyl-4 - (4-fluoro phenyl) - 2-thio-5-yl] methyl ester
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Page/Page column 7; 8-9, (2018/01/19)
The invention relates to a preparation method of a pharmaceutical chemical intermediate and particularly relates to a preparation method of [6-isopropyl-4- (4-fluorophenyl)-2-thio-5-yl]formate. According to the method, p-fluorobenzaldehyde, isobutyryl ace
PREPARATION OF ALKYL 4-(4-FLUOROPHENYL)-6-ISOPROPYL-2-[METHYL(METHYLSULFONY)AMINO]-PYRIMIDINE-5-CARBOXYLATE AND ITS SUBSEQUENT CONVERSION TO N-[4-(4-FLUOROPHENYL)-5-FORMYL-6-ISOPROPYL PYRIMIDIN-2-YL]-N-METHYLMETHANESULFONAMIDE-A KEY INTERMEDIATE IN THE SYNTHESIS OF ROSUVASTATIN
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Page/Page column 14-15, (2008/06/13)
The present invention discloses a novel process to prepare a compound of formula (IIA). By reacting a compound of formula-[D], wherein R1 is C1 to C6 alkyl, preferably R1 is methyl or ethyl, more preferably R1 is methyl ; and R2 is C1 to C8 n-alkyl or branched alkyl, cycloalkyl, phenyl , benzyl or substituted phenyl group, preferably R2 is methyl ; with N-methyl methanesulfonamide and a base, optionally with a salt of N-methyl methanesulfonamide, in suitable solvent(s) , to give a compound of formula (IIA), followed by converting compound of formula (IIA) to a compound for formula -[B], by a known process and finally converting a compound of formula (B) to a compound of formula (II), by a novel process using calcium hypochlorite / TEMPO as an oxidant.
PYRIMIDINE AND PYRIDINE DERIVATIVES USEFUL AS HMG-COA REDUCTASE INHIBITORS AND METHOD OF PREPARATION THEREOF
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Page/Page column 58-59, (2010/02/11)
Compounds are provided having the following structure which are HMG CoA reductase inhibitors and thus are active in inhibiting cholesterol biosynthesis, modulating blood serum lipids, for example, lowering LDL cholesterol and/or increasing HDL cholesterol