N-BENZOYL-N'-PYRIMIDINYLOXYPHENYL UREA COMPOUNDS, AND ANTITUMOROUS COMPOSITIONS CONTAINING THEM, AND PROCESS FOR THEIR PREPARATION

摘要

N-benzoyl-N'-pyrimidinyloxyphenyl urea compounds having the formula: wherein X represents a hydrogen atom, a halogen atom, a nitro group or a trifluoromethyl group and Z represents a hydrogen atom or a halogen atom, are useful as active ingredients of antitumorous compositions.