This invention relates to a VLA-4 inhibitory drug, having good oral absorbability and exhibiting sufficient anti-inflammatory effects when administered orally, wherein an active ingredient is represented by formula (I), or a salt thereof:
Q represents an optionally-substituted monocyclic or bicyclic nitrogen-containing heterocyclic group having a nitrogen atom as the bonding site; Y represents an oxygen atom or CH
2
; W represents an optionally-substituted bicyclic aromatic hydrocarbon ring group or an optionally-substituted bicyclic aromatic heterocyclic group; A
1
represents a nitrogen atom or C—R
3d
wherein R
3d
represents a hydrogen atom, a halogen atom, a C1-8 alkoxy group or a C1-8 alkyl group; R
1
represents H or a C1-8 alkyl group; R
2
represents H, a halogen, a C1-8 alkoxy group, or an optionally-substituted benzyloxy group; and R
3a
, R
3b
and R
3c
independently represent H, a halogen atom, a C1-8 alkoxy group or a C1-8 alkyl group.
本发明涉及一种V
LA-4抑制药物,具有良好的口服吸收性,并在口服给药时表现出足够的抗炎作用,其中活性成分由公式(I)或其盐表示:Q代表一个含氮杂环基团,可以是单环或双环,该基团上的氮原子可选地被取代;Y代表氧原子或
CH2;W代表一个可选取代的双环芳香族碳氢环基团或可选取代的双环芳香族杂环基团;A1代表一个氮原子或C-R3d,其中R3d代表氢原子、卤素原子、C1-8烷氧基或C1-8烷基;R1代表氢原子或C1-8烷基;R2代表氢原子、卤素原子、C1-8烷氧基或可选取代的苄氧基;以及R3a、R3b和R3c分别独立地代表氢原子、卤素原子、C1-8烷氧基或C1-8烷基。