Method of preparing chroman derivatives, and synthesis intermedi

Details Method of preparing chroman derivatives, and synthesis intermedi Method of preparing chroman derivatives, and synthesis intermedi

1991-09-20

1992-05-26

Lee, Mary C.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546230, 546243, 546245, 548530, 548543, 548558, 558423, 560 23, 560 62, C07D21160, C07D20712, C07C25500, C07C 6976

Patent

active

051169878

ABSTRACT:
The invention describes a method of synthesizing a compound of the formula ##STR1## in which X=O or NR,

REFERENCES:
CA 113:23696x Preparation of . . . agents. Haeusler et al. p. 640, Jun. 1988.
CA 114:61929d Preparation of . . . analogs, Garcia et al. p. 673, Dec. 1988.
Hogberg et al., acta. Pharm. Suec., 13, 427-438 (1976).

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