| 摘要 |
The invention is directed to physiologically active compounds of general formula (I): wherein Het is an optionally substituted, saturated, partially saturated or fully unsaturated 8 to 10 membered bicyclic ring; R1 is optionally substituted aryl or optionally substituted heteroaryl; R2 is hydrogen, halogen, lower alkyl or lower alkoxy; L1 is an -R3-R4- linkage whe re R3 is alkylene, alkenylene or alkynylene and R4 is a direct bond, cycloalkylene, heterocycloalkylene, arylene, heteroaryldiyl, -C(=Z2)-NR5-, - NR5-C(=Z2)-, -Z2-, -C(=O)-, -C(=NOR5)-, -NR5-, -NR5-C(=Z2)-NR5-, -SO2-NR5-, - NR5-SO2-, -O-C(=O)-, -C(=O)-O-, -NR5-C(=O)-O- or -O-C(=O)-NR5-; L2 is optionally substituted alkylene or alkenylene; Y is carboxy or an acid bioisostere; and Z1 is NR5; and the corresponding N-oxides, and their prodrugs; and pharmaceutically acceptable salts and solvates (e.g. hydrates) of such compounds and their N-oxides and prodrugs. Such compounds have valuable pharmaceutical properties, in particular the ability to regulate th e interaction of VCAM-1 and fibronectin with the integrin VLA-4 (.alpha.4.beta.1).
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