Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1992-07-10
1994-05-10
Springer, David B.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
548250, 548254, C07D25704, C07D25706, C07D40306
Patent
active
053109287
ABSTRACT:
Method for the preparing biphenyltetrazole compounds which are angiotensin II receptor antagonists or which are useful intermediates to prepare angiotensin II receptor antagonists. An illustrative biphenyl tetrazole compound is 2-n-butyl-4-chloro-1-[(2'-(tetrazol-5-yl)-1,1'-biphenyl-4-yl)methyl]-1H-im idazole-5-methanol, potassium salt.
REFERENCES:
patent: 4820843 (1987-11-01), Aldrich et al.
patent: 5164518 (1992-11-01), Lavock
Bringmann et al., "The Directed Synthesis of Biaryl Compounds: Modern Concepts and Strategies", Angew. Chem. Int. Ed. Engl., vol. 29, 1990, pp. 977-991.
Duncia et al., "Three Synthetic Routes to a Sterically Hindered Tetrazole. A New One-Step Mild Conversion of an Amide into a Tetrazole", J. Org. Chem., 1991, 56, pp. 2395-2400.
Accounts of Chemical Research, vol. 15, No. 10, Oct. 1982, pp. 306-312, Washington, U.S., by P. Beak.
King Anthony O.
Larsen Robert D.
Lo Young S.
Rossano Lucius T.
E. I. Du Pont de Nemours and Company
Merck & Co. , Inc.
Springer David B.
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