Patent ID: 6686336
Filing Date: 2004-02-03
Classification: A61K,C07K

Abstract:
A compound of formula I: whereinR1 is an amino acid or a peptide of about 2 amino acids to about 5 amino acids; and R2 and R3 are each independently, hydrogen, (C1-C6)alkyl, (C3-C6)cycloalkyl, or (C3-C6)cycloalkyl(C1-C6)alkyl; or R2 and R3 together to which the carbon to which they are attached form a 3,4, 5, or 6-membered carbocyolic or heterocyclic ring, optionally substituted on carbon with (C1-C6)alkyl, (C1-C6)haloalkyl, (C3-C6)cycloalkyl, (C3-C6)cycloalkyl(C1-C6)alkyl, (C1-C6)alkoxy, or (C3-C6)cycloalkyl(C1-C6)alkoxy; or a salt thereof, provided that R2 and R3 are not both hydrogen.