Antidepressants

Details Antidepressants Antidepressants

A - Human Necessities

61

K

A61K 31/52 (2006.01) C07D 473/06 (2006.01) C07D 473/08 (2006.01)

Patent

CA 2116967

The present invention relates to an antidepressant containing as an active ingredient a xanthine derivative or a pharmaceutically acceptable salt thereof, the xanthine derivative being represented by Formula (I): (see formula I) in which R1, R2, and R3 represent independently hydrogen, lower alkyl, lower alkenyl, or lower alkynyl; R4 represents cycloalkyl, -(CH2)n-R5 (in which R5 represents substituted or unsubstituted aryl or a substituted or unsubstituted heterocyclic group; and n is an integer of 0 to 4), or (see formula II) (in which Y1 and Y2 represent independently hydrogen, halogen, or lower alkyl; and Z represents substituted or unsubstituted aryl, (see formula III) -180- (in which R6 represents hydrogen, hydroxy, lower alkyl, lower alkoxy, halogen, nitro, or amino; and m represents an integer of 1 to 3), or a substituted or unsubstituted heterocyclic group); and X1 and X2 represent independently O or S.

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