Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1995-03-31
1996-04-16
Dees, Jose G.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
548469, 560 39, C07D40500, C07C22934
Patent
active
055084095
ABSTRACT:
Intermediates and processes are disclosed which are useful for the preparation of a substantially pure compound of the formula: ##STR1## wherein R.sub.6 and R.sub.7 are each hydrogen or R.sub.6 and R.sub.7 are independently selected from ##STR2## wherein R.sub.a and R.sub.b are independently selected from hydrogen, loweralkyl and phenyl and R.sub.c, R.sub.d and R.sub.e are independently selected from hydrogen, loweralkyl, trifluoromethyl, alkoxy, halo and phenyl; and ##STR3## wherein the naphthyl ring is unsubstituted or substituted with one, two or three substitutents independently selected from loweralkyl, trifluoromethyl, alkoxy and halo; or
REFERENCES:
patent: 2784228 (1957-03-01), Hartung
Stuk, et al., J. Org. Chem. 59 4040-4041 (1994).
Ghosh, et al., J. Org. Chem. 58 1025 (1993).
Brillon, et al., J. Org. Chem. 57 1838 (1992).
Allen Michael S.
Haight Anthony R.
Reno Daniel S.
Sham Hing Leung
Sowin Thomas J.
Abbott Laboratories
Crowley Steven R.
Dees Jos,e G.
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