Compounds

摘要

Compounds of formula (I) wherein X is O, CH₂, S or NH, or the moiety X-R¹ is hydrogen; V is CH or N; Y is NR¹⁰R¹¹, NR¹⁰C(Z)NR¹⁰R¹¹, NR¹⁰COOR¹¹ or NR¹⁰SO₂R¹¹; Ar is phenyl or a 5- or 6-membered heteroaryl ring either of which may be optionally substituted; n is 0, 1, 2, 3 or 4; and R¹, R², R³, R⁴, R¹⁰ and R¹¹ have the meanings given in the description; and pharmaceutically acceptable salt thereof.