Patent ID: 7456298

Claim:
A compound comprising an acetonide having the formula: wherein: R 1 , R 2 , and R 3 are each independently selected from hydrogen, a halogen, an aryl, a linear or branched C 1 -C 18 alkyl, a linear or branched C 2 -C 18 alkenyl, a linear or branched C 2 -C 18 alkynyl, OR, SR, NR 2-3 , or O(CO)R, except when R 1 ═R 2 ═R 3 then R 1 ═R 2 ═R 3 cannot be —CH 3 and where any two of R 1 , R 2 , and R 3 is —CH 3 , then the other of R 1 , R 2 , and R 3 cannot be —H or —CH 2 CH 3 ; and R is hydrogen, linear or branched C 1 -C 18 alkyl, or SiR 1 R 2 R 3 .