Process for preparing a naphthalene derivative and a...

Details Process for preparing a naphthalene derivative and a... Process for preparing a naphthalene derivative and a...

C - Chemistry, Metallurgy

07

C

260/351, 260/366

C07C 69/94 (2006.01) C07D 307/92 (2006.01) C07D 317/70 (2006.01) C07D 493/04 (2006.01) C07F 7/18 (2006.01)

Patent

CA 2007580

- 1 - ABSTRACT The present invention is directed to a process for preparing a naphthalene derivative of the formula: Image wherein R1 and R2 represent a lower alkoxycarbonyl group or together may combine to form a group of the formula: Image ; one of R3 and R4 is a hydrogen atom or a lower alkoxy group and the other is a lower alkoxy group; ring A is a substituted or unsubstituted benzene ring, which is useful as a hypolipidemic agent, and a novel intermediate of the formula: Image wherein R1, R2, R3, R4 and ring A are the same as defined above.

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