Patent ID: 8669398

Claim:
Compounds of the formula I: wherein R 100 and R 101 are each independently of one another a C 1 -C 4 alkyl group or together form a radical of the formula A: wherein R 1 -R 4 are each, independently of one another, a C 1 -C 4 alkyl group; R 5 and R 6 are each, independently of one another, hydrogen or a C 1 -C 4 alkyl group; Q is —(CR 7 R 8 )—, wherein R 7 and R 8 are each, independently of one another, hydrogen or a C 1 -C 4 alkyl group; Z 1 is —(CR 12 R 13 )—, where, independently of one another, one of the radicals R 12 and R 13 is hydrogen or a C 1 -C 4 alkyl group and the other is —OH, a C 1 -C 6 alkyl group, or a monoacyloxy group selected from the group consisting of a —O—C(═O)—H group, a —O—C(═O)—C 1 -C 4 alkyl group, and a —O—C(═O)—C 6 -C 10 aryl group; R 102 and R 103 are each, independently of one another, a C 1 -C 4 alkyl group, a cyclohexyl group, or an unsubstituted or C 1 -C 4 alkyl group-substituted phenyl group; and R 104 is hydrogen, a —C(═O)—C 1 -C 17 alkyl group, or a —C(═O)—C 6 -C 10 aryl group.