Patent ID: 7351837

Claim:
A compound of formula (I), wherein R N is -L-G, wherein L is -aryl-, -heteroaryl-, -(C 8 -C 30 )alkyl-, -(C 6 -C 20 )haloalkyl-, -(C 3 -C 10 ) cycloalkyl-, or -heterocyclyl-; and G is —S(O) 2 OM, wherein M is H, Li, Na, K, Rb, or Cs; R is -L 1 -R′, wherein, L 1 is a bond, -(C 1 -C 4 )alkyl-O-, -aryl-, or -(C 3 -C 10 )cycloalkyl-; and R′ is -(C 8 -C 30 ) alkyl, -(C 6 -C 20 )haloalkyl, or -((C 1 -C 4 )alkyl-O) j -R″, wherein j is an integer from 2 to 100; and R″ is —H or methyl; and m is an integer from 1 to 4.