9S-(N-acetyl-N-benzylaminomethyl)cinchonine
9S-(N-benzylaminomethyl)cinchonine
9R-(2-aminophenyl)sulfanylmethylcinchonine
9R-phenylsulfanylmethylcinchonine
N-((8R,9S)-9-(tert-butyldimethylsilyloxy)cinchonan-9-ylmethyl)-N'-3,5-bis(trifluoromethyl)phenylthiourea