Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2007-11-20
2007-11-20
Saeed, Kamal A. (Department: 1626)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
active
10842600
ABSTRACT:
An epoxytriazole derivative (V) useful as an intermediate for anti-fungal agents and an intermediate therefor having high quality can be produced economically and efficiently by the following industrial means. A compound of the following formula (I) is reacted with trimethyloxosulfonium salt and the like in the presence of a base to give compound (II), this compound is converted to compound (IV), and this compound is reacted with 1,2,4-triazole in the presence of a base.wherein Ar is a phenyl group optionally substituted by 1 to 3 halogen atom(s) or trifluoromethyl group, R is a hydrogen atom or lower alkyl group, and X is a leaving group.
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Ikemoto Tetsuya
Wang Weiqi
Leydig , Voit & Mayer, Ltd.
Saeed Kamal A.
Sumitomo Chemical Company Limited
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