Process for preparing a naphthalene derivative and a synthetic i

Details Process for preparing a naphthalene derivative and a synthetic i Process for preparing a naphthalene derivative and a synthetic i

1990-01-05

1991-03-26

Hollrah, Glennon H.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549298, 560 56, 556438, 558406, C07C 6978, C07D30783

Patent

active

050030876

ABSTRACT:
A novel process for preparing a naphthalene derivative of the formula: ##STR1## wherein R.sup.1 and R.sup.2 are a lower alkoxycarbonyl group or both may combine to form a group of the formula ##STR2## one of R.sup.3 and R.sup.4 is 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: ##STR3## wherein R1, R2, R3, R4 and ring A are the same as defined above.

REFERENCES:
patent: 4728740 (1988-03-01), Vyas et al.
patent: 4771072 (1988-09-01), Iwasaki et al.

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