abstract |
Compounds of the formula (i)--- wherein r and r1 are hydrogen, c1-4alkyl or are linked to form a ring, a is a cycloalkyl-cycloalkyl group, n is a n interger from 0 to 3, w is an optionally substituted 5-or 6-membered heterocyclic ring; or w is an optionally substituted aryl,heteroaryl,aryloxy or thiophenoxy group; or w is a group -s02nr6r7 -nhc(0)r6r7 or -c(0)nhr6r7;are useful in treating clinical conditions for which a |