(R)-3-amino-3-(4-{3-methoxy-4-[3-(2-methylphenyl)ureido]phenylacetylamino}-phenyl)-propanoic acid methyl ester 、 戊二酸酐 在
氩 作用下,
以
四氢呋喃 为溶剂,
反应 4.0h,
以to give the title compound (1.0 g) as a white solid的产率得到(R)-3-(4-carboxybutanoyl-amino)-3-(4-{3-methoxy-4-[3-(2-methylphenyl)ureido]phenylacetylamino}-phenyl)-propanoic acid methyl ester
The invention is directed to physiologically active compounds of formula (I):
wherein:
R1 is hydrogen, halogen, hydroxy, lower alkyl or lower alkoxy;
X1, X2 and X6 independently represent N or CR10; and
one of X3, X4 and X5 represents CR11 and the others independently represents N or CR10;
where R10 is hydrogen, amino, halogen, hydroxy, lower alkyl, lower alkoxy, lower alkylthio, lower alkylsulphinyl, lower alkylsulphonyl, nitro or trifluoromethyl; and R11 represents a group —L1—Ar1—L2—Y; and the corresponding N-oxides, and their prodrugs; and pharmaceutically acceptable salts and solvates of such compounds and their N-oxides and prodrugs. Such compounds have valuable pharmaceutical properties, in particular the ability to regulate the interaction of VCAM-1 and fibronectin with the integrin VLA-4 (&agr;4&bgr;1).