C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
167/207, 260/277
C07D 311/72 (2006.01) C07D 405/04 (2006.01) C07D 407/12 (2006.01)
Patent
CA 1308108
ABSTRACT OF THE DISCLOSURE Disclosed herein are novel benzopyrans having pharmacologica1 activity, to a process for preparing them, to pharmaceutical compositions containing them, and to their use in the treatment of hypertension. The benzopyrans have the following formula (I) Image (I) wherein R1 is trifluoromethoxy or .beta.,.beta.,.beta.-trifluoroethoxy; R2 and R3 are independently selected from the group consisting of hydrogen, lower alkyl containing 1 to 5 carbon atoms, cyclo lower alkyl containing 5 to 8 carbon atoms, Image or R2 and R3 are joined to form ?CH2?n wherein n is 4 to 7; or R2 and R3 are joined together to form ?CH2?m?- wherein m is 3 to 6; or R2 and R3 are joined together to form Image Image or wherein R4 is selected from the group consisting of hydrogen, alkoxy containing 1 to 5 carbon atoms, amino or mono- or disubstituted alkyl amino wherein said alkyl groups contain 1 to 5 carbon atoms.
550349
Humber Leslie G.
Quagliato Dominick A.
American Home Products Corporation
Swabey Ogilvy Renault
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