Application of novel compound in preparing medicine for treating tumor

The invention discloses application of a compound as shown in the formula (I), a pharmaceutically acceptable salt or a solvent compound of the compound in preparing a medicine for treating tumor. In the formula, R1 is selected from formulae as shown in the description; R2 and R3 are respectively independently selected from H, halogen, alkyl and a formula as shown in the description; or R2 and R3 form a one-substituted or polysubstituted hexahydric aromatic heterocyclic ring with 1-2 heteroatoms together with carbon atoms connected with R2 and R3; R4, R5 and R6 respectively represent 0-3 substitution on a benzene ring; R4, R5 and R6 are respectively and independently selected from H, halogen atoms, C1-C6 alkyl, C1-C6 alkoxy, hydroxyl, amino, carboxyl, nitryl, CH3O(CH2)nCH2O- and a formula as shown in the description; and in the formula, n is an integer of 1-6. The compound disclosed by the invention is definite in medicinal effect when being used for treating tumor. 式(Ⅰ)所示的化合物或其药学上可接受的盐、或其溶剂合物在制备治疗肿瘤的药物中的用途：其中