Patent ID: 8268786

Claim:
A composition of matter comprising a compound selected from: 2,5,7,8-tetramethyl-2-((3E,7E)-4,8,12-trimethyltrideca-3,7,11-trienyl)chroman-6-ylphenylsulfonylcarbamate; 2,7,8-trimethyl-2-((3E,7E)-4,8,12-trimethyltrideca-3,7,11-trienyl)chroman -6-ylphenylsulfonylcarbamate; 2,8-dimethyl-2-((3E,7E)-4,8,12-trimethyltrideca-3,7,11-trienyl)chroman-6-ylphenylsulfonylcarbamate; (R)-2,5,7,8-tetramethyl-2-((3E,7E)-4,8,12-trimethyltrideca-3,7,11-trienyl)chroman-6-yl tosylcarbamate; (R)-2,7,8-trimethyl-2-((3E,7E)-4,8,12-trimethyltrideca-3,7,11-trienyl)chroman-6-yl tosylcarbamate; (R)-2,8-dimethyl-2-((3E,7E)-4,8,12-trimethyltrideca-3,7,11-trienyl)chroman-6-yl tosylcarbamate; (R)-2,5,7,8-tetramethyl-2-((3E,7E)-4,8,12-trimethyltrideca-3,7,11-trienyl)chroman-6-yl 4-chlorophenylsulfonylcarbamate; (R)-2,7,8-trimethyl-2-((3E,7E)-4,8,12-trimethyltrideca-3,7,11-trienyl)chroman-6-yl 4-chlorophenylsulfonylcarbamate; (R)-2,8-dimethyl-2-((3E,7E)-4,8,12-trimethyltrideca-3,7,11-trienyl)chroman-6-yl 4-chlorophenylsulfonylcarbamate; (R)-2,5,7,8-tetramethyl-2-((3E,7E)-4,8,12-trimethyltrideca-3,7,11-trienyl)chroman-6-yl phenylcarbamate; (R)-2,7,8-trimethyl-2-((3E,7E)-4,8,12-trimethyltrideca-3,7,11-trienyl)chroman-6-yl phenylcarbamate; (R)-2,8-dimethyl-2-((3E,7E)-4,8,12-trimethyltrideca-3,7,11-trienyl)chroman-6-yl phenylcarbamate; (R)-2,5,7,8-tetramethyl-2-((3E,7E)-4,8,12-trimethyltrideca-3,7,11-trienyl)chroman-6-yl benzylcarbamate; (R)-2,7,8-trimethyl-2-((3E,7E)-4,8,12-trimethyltrideca-3,7,11-trienyl)chroman-6-yl benzylcarbamate; (R)-2,8-dimethyl-2-((3E,7E) 4,8,12-trimethyltrideca-3,7,11-trienyl)chroman-6-yl benzylcarbamate; (R)-2,5,7,8-tetramethyl-2-((3E,7E)-4,8,12-trimethyltrideca-3,7,11-trienyl)chroman-6-yl benzoylcarbamate; (R)-2,7,8-trimethyl-2-((3E,7E)-4,8,12-trimethyltrideca-3,7,11-trienyl)chroman-6-yl benzoylcarbamate; and (R)-2,8-dimethyl-2((3E,7E)-4,8,12-trimethyltrideca-3,7,11-trienyl)chroman-6-yl benzoylcarbamate.