Patent ID: 7851471

Claim:
A compound selected from the group consisting of: morpholin-3-ylmethyl 4-phenylpiperazine-1-carboxylate; [(2S)-4-methylmorpholin-2-yl]methyl 4-(2,4-difluorophenyl)piperazine-1-carboxylate; [(2R)-4-methylmorpholin-2-yl]methyl 4-(2,4-difluorophenyl)piperazine-1-carboxylate; morpholin-2-ylmethyl 4-(4-fluorophenyl)piperazine-1-carboxylate; (2S)-morpholin-2-ylmethyl 4-(4-fluorophenyl)piperazine-1-carboxylate; (2R)-morpholin-2-ylmethyl 4-(4-fluorophenyl)piperazine-1-carboxylate; morpholin-3-ylmethyl 4-(4-fluorophenyl)piperazine-1-carboxylate; (3S)-morpholin-3-ylmethyl 4-(4-fluorophenyl)piperazine-1-carboxylate; (3R)-morpholin-3-ylmethyl 4-(4-fluorophenyl)piperazine-1-carboxylate; and pharmaceutically acceptable salts thereof.