Patent ID: 7217841

Claim:
A compound of the formula I [R—S(═O) m —CH 2 CH(OH)—CH 2 ] n —N(R 1 ) 2-n —R 2 (I), in which R is C 4 –C 20 alkyl, hydroxyl-substituted C 4 –C 20 alkyl, phenyl, benzyl, α-methylbenzyl, α,α-dimethylbenzyl, cyclohexyl or —(CH 2 ) q COOR 3 , and, when m is 0, R may additionally be and, when n is 1 and R 4 is hydrogen, R may additionally be R 2 —R 1 N—CH 2 —CH(OH)—CH 2 —S(═O) m —(CH 2 ) x — or R 2 —R 1 N—CH 2 —CH(OH)—CH 2 —S(═O) m —CH 2 —CH 2 —(O—CH 2 —CH 2 ) y —; m is 0 or 1, when m is 0, R 1 is 1,3-dimethylbutyl, when m is 1, R 1 is hydrogen, cyclohexyl or C 3 –C 12 alkyl, R 3 is C 1 –C 18 alkyl, R 4 is hydrogen or —CH 2 —CH(OH)—CH 2 —S(═O) m —R, X is C 1 –C 8 alkyl, Y is C 1 –C 8 alkyl, n is 1 or 2, q is 1 or 2, x is from 2 to 6, and y is 1 or 2.