Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives
Reexamination Certificate
2005-06-14
2005-06-14
Peselev, Elli (Department: 1623)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbohydrates or derivatives
C536S018500
Reexamination Certificate
active
06906184
ABSTRACT:
An improved process for the preparation of the antiparasitic compound 25-cyclohexyl-22,23-dihydro-5-hydroxyiminoavermectin B1 monosaccharide from doramectine and intermediates therefor and crystalline solvates thereof.
REFERENCES:
patent: 5962659 (1999-10-01), Baker et al.
patent: 0379341 (1990-07-01), None
patent: WO 94/15944 (1994-07-01), None
patent: WO 95/10525 (1995-04-01), None
Cambers Selena J.
Walshe Nigel D.
Hosley Mary J.
Peselev Elli
Pifzer, Inc.
Richardson Peter
Wootton Thomas A.
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