Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Reexamination Certificate
2005-03-01
2005-03-01
Desai, Rita (Department: 1625)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
C514S563000
Reexamination Certificate
active
06861553
ABSTRACT:
Provided is a process for preparation of an intermediate in the synthesis of nateglinide. Trans-4-isopropylcyclohexane acid chloride is formed by reacting 4-isopropylcyclohexanecarboxyl acid with thionyl chloride in the presence of an effective amount of an organic amide.Also provided are processes for preparation of nateglinide by acylation of a suitable salt of D-phenylalanine with trans-4-isopropylcyclohexane acid chloride in both a single and a two phase system, and in water free of a co-solvent.
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Dolitzky Ben-Zion
Gozlan Yigael
Shapiro Evgeny
Yahalomi Ronit
Desai Rita
Kenyon & Kenyon
Reyes Hector M.
Teva Pharmaceuticals Industries Ltd.
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