Patent ID: 8524781

Claim:
A compound of formula (2) wherein: R 1 is propyl, butyl, isopropyl, or isobutyl; dansyl; substituted linear or branched C1-C5 alkenyl; or substituted linear or branched C1-C5 alkyl; in which the substituents are selected from OR 3 ; NR 4 R 5 ; and CONR 7 R 8 ; substituted or unsubstituted aromatic; substituted or unsubstituted heteroaromatic, in which R 3 is selected from H, COR 9 , para-methoxybenzyl, and trialkylsilyl, in which R 9 is alkyl or substituted alkyl; R 4 and R 5 are independently alkyl or R 4 and R 5 together form a phthalimido group; R 7 and R 8 are independently alkyl or substituted alkyl; and R 2 is linear or branched C1-C5 alkyl; linear or branched C1-C5 alkenyl; substituted linear or branched C1-C5 alkenyl; or substituted linear or branched C1-C5 alkyl; in which the substituents are selected from OR 3 ; NR 4 R 5 ; and CONR 7 R 8 ; substituted or unsubstituted aromatic; substituted or unsubstituted heteroaromatic; in which R 3 is selected from H, COR 9 , para-methoxybenzyl, and trialkylsilyl, in which R 9 is alkyl or substituted alkyl; R 4 and R 5 are independently alkyl or R 4 and R 5 together form a phthalimido group; R 7 and R 8 are independently alkyl or substituted alkyl, wherein the compound of formula (2) excludes (E/Z)-4,5,9-trithiadodeca-1,6-diene-9-oxide.