To synthesize a new compound having a 1,4-benzoxazin-3-one skeleton, and to find out pharmacological actions of the compound.
This invention relates to a compound represented by formula [I] (wherein ring A represents a ring of benzene, thiophene, thiazole, furan or the like; R1 and R2 are each independently an hydrogen atom, an alkyl group, an alkenyl group, an aryl group, an aromatic heterocyclic group or the like; X represents a single bond, C=C, CH2-O, O-CH2, NH-CH2, CH2-NH or the like; Y represents a hydroxy group, an alkyl group, an alkoxy group, NR3R4 or the like; and R3 and R4 are each independently a hydrogen atom, a hydroxy group, an alkyl group, an alkoxy group, a cycloalkyl group, an aryl group, an aromatic heterocyclic group, a non-aromatic heterocyclic group or the like) or a salt thereof.
FUJISAWA YUKIFUMI
AONO HIROYUKI
BAN MASAKAZU
Einosuke Kishimoto
Akira Watanabe
Matsumura Naoto