Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1988-08-23
1990-06-05
Chan, Nicky
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
549407, C07D31166, C07D31158
Patent
active
049315749
ABSTRACT:
The invention is directed to a process and intermediates for the preparation of benzopyrans such as racemic-6-acetyl-7-[5-(4-acetyl-3-hydroxy-2-propylphenoxy)pentyloxy]-3,4-d ihydro-2H-1-benzopyran-2-carboxylic acid.
REFERENCES:
patent: 4728650 (1988-03-01), Eziri et al.
patent: 4785017 (1988-11-01), Cohen et al.
Roberts et al., "Basic Principles of Organic Chemistry", W. A. Benjamin, Inc., New York, NY, 1965, pp. 298-301.
Manchand Percy S.
Micheli Robert A.
Chan Nicky
Gould George M.
Hoffmann-La Roche Inc.
Isgro William G.
Leon Bernard S.
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