Patent ID: 7772380

Claim:
An α-galactosylceramide of Formula I: wherein R1 is a C 6 -C 27 alkane or alkene wherein (i) the C 6 -C 27 alkane or alkene is substituted with a C 5 -C 15 cycloalkane, C 5 -C 15 cycloalkene, heterocycle, or aromatic ring or (ii) the C 6 -C 27 alkane or alkene includes, within the C 6 -C 27 alkyl or alkenyl chain, a C 5 -C 15 cycloalkane, C 5 -C 15 cycloalkene, heterocycle, or aromatic ring; and R2 is one of the following (a)-(e): (a) —CH 2 (CH 2 ) X CH 3 , (b) —CH(OH)(CH 2 ) X CH 3 , (c) —CH(OH)(CH 2 ) X CH(CH 3 ) 2 , (d) —CH═CH(CH 2 ) X CH 3 , (e) —CH(OH)(CH 2 ) X CH(CH 3 )CH 2 CH 3 , wherein X is an integer ranging from 5-17.