| abstract |
A substituted trans-cycloheptene according to formula (I); wherein: a) Z and L are each selected from the group consisting of SiR 1 R 2 , CH 2 , CHOH, and CHR 2 ; R 1 is phenyl or CH 3 ; R 2 is phenyl, CH 3 , (CH 2 ) n CN, or (CH 2 ) n OH, wherein n is an integer from 1 to 5; R a and R b are each individually selected from the group consisting of H, OH, and CH 3 ; and Z and L are not both SiR 1 R 2 ; or b) Z is BocN, L is CH 2 , R a is H, and R b is H; or c) Z is C=0, L is CH 2 , R a is H, and R b is H. |