Patent ID: 8354407

Claim:
A compound having the formula: wherein R is morpholinyl; L is a unit chosen from —CH 2 CH 2 —, —CH 2 CH 2 CH 2 —, and —CH 2 CH 2 CH 2 CH 2 —; R 1 is chosen from 3-chlorophenyl, 4-chlorophenyl, 3,4-dichlorophenyl, 3-chloro-4-methylphenyl, 3-chloro-4-fluorophenyl, 3,4-difluorophenyl, 3-trifluoromethylphenyl, 3-trifluoromethyl-4-chlorophenyl, 3-methoxyphenyl, 3-methylphenyl, 3-ethylphenyl, or 3-isopropylphenyl.