| abstract |
1. A compound having Formula I n nR 1 —SO 2 NR 3 -L-R 2 Formula I n nwherein R 1 is an optionally substituted phenyl ring; R 2 is a heterocyclic ring; R 3 is H or a hydrocarbyl group; and L is an optional acyclic linker wherein when R 2 is a five-membered aromatic heterocyclic ring, L is present. |