Patent ID: 6930101

Claim:
A compound of formula (I): wherein R 1 is -Z-A wherein Z is (a) C 1 -C 7 alkyl, optionally interrupted with 1-2 double bonds, 1-2 nonperoxide O, or 1-2 NR wherein R is individually H, phenyl, benzyl, C 2 -C 4 alkanoyl or C 1 -C 6 alkyl; (b) C 3 -C 6 cycloalkyl; (c) C 3 -C 6 cycloalkyl C 1 -C 3 alkyl; (d) C 6 -C 10 aryl; or (e) C 6 -C 10 aryl C 1 -C 3 alkyl; A is N(R) 2 , C 2 -C 4 acyloxy, SO 3 H, PO 4 H 2 , N(NO)(OH), SO 2 NH 2 , PO(OH)NH 2 , OH, SO 2 R 3 , tetrazolyl, or COOR 3 wherein R 3 is H, phenyl, benzyl or C 1 -C 6 alkyl optionally substituted with 1-2 OR, heteroaryl, C 6 -C 10 aryl, C 2 -C 4 alkenyl, phenyl, tetrazolyl or an amino acid residue formed by the removal of a hydrogen atom from the —COOH group of an amino acid; R 2 is a C 1 -C 6 alkyl, C 2 -C 4 alkenyl, C 6 -C 10 aryl C 1 -C 2 alkyl or C 6 -C 10 heteroaryl C 1 -C 2 alkyl; X is H, halo, OR, SR, N 3 or N(R) 2 ; or a pharmaceutically acceptable salt thereof.