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1. (WO2017150654) 5-METHYL-6-PHENYL-4,5-DIHYDRO-2H-PYRIDAZIN-3-ONE DERIVATIVE

Pub. No.:    WO/2017/150654    International Application No.:    PCT/JP2017/008246
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Fri Mar 03 00:59:59 CET 2017
IPC: C07D 237/02
C07D 237/14
A61K 31/50
A61P 35/00
Applicants: OTSUKA PHARMACEUTICAL CO., LTD.
Inventors: KATOH, Takahiro
IIDA, Masatoshi
TERAUCHI, Yuki
YAMAGUCHI, Kazuya
HIROSE, Toshiyuki
YOKOYAMA, Fumiharu
NISHIMORI, Hikaru
OBUCHI, Yutaka
NABESHIMA, Hiroshi
TAKAKI, Emiri
Title: 5-METHYL-6-PHENYL-4,5-DIHYDRO-2H-PYRIDAZIN-3-ONE DERIVATIVE
Abstract:
The present invention provides an agent for treating malignant tumor, comprising a compound of formula (1): wherein R1 to R4 are hydrogen atom, halogen, or etc., Y is optionally-substituted alkylene group or etc.