Process for producing triterpene derivative

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

Reexamination Certificate

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C560S116000, C562S455000, C562S498000, C549S332000

Reexamination Certificate

active

10508476

ABSTRACT:
A process for a preparation of Compound (V), a pharmaceutically acceptable salt or a solvate thereof, said process comprising the steps represented by the following formula:wherein R1and R2are each independently C1–C8alkyl.

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patent: 97/27314 (1997-07-01), None
J. Org. Chem., (1997), 62(4), p. 960-6.
Organic Process Research & development, (1999), 3(5), p. 347-51.

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