Patent ID: 8710252

Claim:
A compound of formula: wherein, X is CH 2 ; R 1 is lower alkyl, alkenyl or alkynyl; lower alcohol, saturated or unsaturated; aryl; substituted aryl; —(CH 2 ) n -phenyl where n is 1 to 9; or Z-R 5 , wherein Z is a single bond or a C1-C10 carbon chain optionally substituted with —OH and/or halogen and/or optionally containing up to three double or triple bonds or a mixture of double and triple bonds up to a maximum of three; and R 5 is C1-C10 alkyl OH, C1-C10 alkyl-halide, C1-C10 alkyl N3, C1-C10 alkyl-NH2 or COOR 6 or CONHR 6 , wherein R 6 is H, C5 or C6 cycloalkyl, C5-C6 aryl, a sugar moiety or C1-C10 alkyl or alkenyl optionally substituted with COOH, C5-C6 aryl, heterocycle or a sugar moiety; R 2 OH, halogen, NH 2 , SH, OPO 3 H, lower alkyl, alkenyl or alkynyl, lower alcohol, O-lower alkyl or alkenyl, S-lower alkyl or alkenyl, NH-lower alkyl or alkenyl, or N his-lower alkyl or alkenyl; and R 3 is a C4-C15 carbon chain optionally substituted with —OR 7 , wherein R 7 is H, lower alkyl, alkenyl or alkynyl; wherein R 3 optionally contains up to three double or triple bonds or a mixture of double and triple bonds up to a maximum of three; or a pharmaceutical salt, methyl ester, sugar amide, or sugar ester thereof.