Boron-containing compounds

1. A compound of Formula (A), or a pharmaceutically acceptable salt, solvate, or stereoisomer thereof:

wherein

n is 1 or 2;

p is 1;

CycA is an optionally substituted cyclohexane;

each Y is independently —NR 4 R 5 or —NR 4 (CR 6 R 7 ) v NR 4 R 5 ;

each R 1 and R 2 are hydrogen;

R 4 and R 5 are hydrogen;

each R 6 and R 7 are hydrogen; and

v is 2 or 3;

wherein the compound of Formula (A) is free of trifluoroacetic acid and is more than about 97% pure (mole %).