Boronate esters

Organic compounds -- part of the class 532-570 series – Organic compounds – Borate esters

Reexamination Certificate

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Reexamination Certificate

active

10923934

ABSTRACT:
The present invention relates to optically active boronate derivatives which are useful as intermediates for the synthesis of HMG-CoA enzyme inhibitors such as atorvastatin, cerivastatin, rosuvastatin, pitavastatin, and fluvastatin.

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Frechet et al. “Use of Polymers as Protecting Groups in Organic Synthesis. Application of Polystyrylboronic Acid to the One-Pot Synthesis of Acylated Carbohydrate Derivatives” Journal of the American Chemical Society 1979 vol. 101, Iss 2, pp. 432-436.
International Search Report, PCT/IN02/00032, Date of mailing Jun. 4, 2002.
Office Action Summary for U.S. Appl. 10/505,528, Date of mailing Oct. 4, 2006.

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