abstract |
The present invention is directed to the treatment of 7- (heteroaryl-amino) -6,7,8,9-tetrahydropyrido [1,2-a] indole acetic acid derivatives of formula (I) and various prostaglandin-mediated diseases and disorders For prostaglandin receptor modulators, most particularly for their use as prostaglandin D 2 receptor modulators, pharmaceutical compositions containing said compounds and methods for their preparation Wherein R 1 , R 2 , R 3 and R 4 are as described in the specification. |