Ketals of xanthine compounds

Details Ketals of xanthine compounds Ketals of xanthine compounds

C - Chemistry, Metallurgy

07

D

260/242.4

C07D 473/04 (2006.01) C07D 473/06 (2006.01)

Patent

CA 1125750

ABSTRACT OF THE DISCLOSURE Compounds of the formula (II) are disclosed Image (II) wherein R1 is a lower alkyl group and R2 is a lower alkyl group; or R1 is linked to R2 so that the OR1 and OR2 moieties and the carbon atom to which they are attached form a 1,3-dioxacyclohexa- -2,2-diyl, 1,3-dioxacyclopenta-2,2-diyl or 1,3-dioxacyclohepta- -2,2-diyl diradical; and R3 and R4 are the same or different and are each a lower alkyl group. The compounds possess good blood flow enhancing properties. Methods of preparation are disclosed.

348931

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