Patent number: 6399599
Abstract: Compounds of formula I
wherein n is 1, 2 or 3; R1 is H, C1-4alkyl, aryl, or aryl-C1-4alkyl; Y is C1-4alkylene, —CO—C1-4alkylene, —CO—C2-5alkenylene, —CO—NH—, —CO—C1-3alkylene-NH—, or —CO—O—; R2 is an aromatic or heteroaromatic residue, each being optionally substituted by CF3, halogen, OH, C1-4alkoxy, amino, mono- or di-C1-4alkyl substituted amino, phenyl, benzyl or C1-4alkyl optionally substituted by amino; R3is the side chain present on the C&agr; of an &agr;-amino acid; R4 is biphenylyl, benzyl, hydroxy-benzyl, &agr;- or &bgr;-naphthyl-methyl, 5,6,7,8-tetrahydro-&bgr;-naphthyl-methyl or indolyl-methyl, each being optionally substituted on the ring by CF3, halogen, OH, C1-4alkoxy, amino, mono- or di-C1-4alkyl substituted amino, phenyl, benzyl or C1-4alkyl optionally substituted by amino; and X is —CN, —NR5R6 or —O—R8 wherein R5 is H, C1-6alkyl, aryl or aryl-C1-4alkyl; R6 is H or C1-6alkyl;
Type:
Grant
Filed:
October 11, 2000
Date of Patent:
June 4, 2002
Assignee:
Novartis AG
Inventors:
Rainer Albert, Josef G. Meingassner, Sompong Wattanasin, Gabriele Weitz-Schmidt, Karl Welzenbach, Ulrich Hommel, Claus Ehrhardt, Didier Roche, Joerg Kallen
