1'-morpholin-4-ylmethyl-2'-oxo-3,3-diphenyl-1',2'-dihydro-spiro[cyclopropane-1,3'-indole]-2-carboxylic acid ethyl ester
2-(3-hydroxy-2-oxoindolin-3-yl)ethyl 4-methylbenzenesulfonate
(+/-)-donaxaridine
2-hydroxyquinoline-4-carboxylic acid
(+/-)-3-(2-hydroxy-ethyl)-1,3-dihydro-indol-2-one