Patent ID: 8722916

Claim:
A protected organoboronic acid of the formula I: wherein R 1 is selected from hydrogen, alkyl, substituted alkyl, alkenyl, substituted alkenyl, alkynyl, substituted alkynyl, aryl, and heteroaryl; and R 2a , R 2b , R 2c , and R 2d are independently selected from hydrogen, alkyl, substituted alkyl, halogen, hydroxyl, cyano, phosphate, alkoxy, substituted alkoxy, carboxyl, carboxyl ester, heterocyclyl, substituted heterocyclyl, alkenyl, substituted alkenyl, amino, substituted amino, acyl, acylamino, aminoacyl, alkoxycarbonylamino, thiol, alkylthiol, substituted thioalkoxy, and sulfonyl, wherein at least one of R 2a , R 2b , R 2c , and R 2d is not hydrogen.