摘要:
A compound of formula (I) or of formula (II) wherein X is oxygen or sulfur, and Y is a residue of pipecolic acid or a residue of an amino acid, preferably a naturally occurring amino acid.
摘要:
A compound of formula (I) wherein Y is oxygen or sulfur, and X1, X2 and X3 are independently of each other hydrogen, halogen, hydroxy or linear or branched (C1-6)-alkoxy, or hydroxy-(C1-6)alkyl or (C1-6)alkoxy-(C1-6)alkyl, mono- or dihalogenated (C1-6)-alkyl, amino(C1-6)-alkyl, hydroxy(C1-6)-alkyl, with one of the two provisos that: (1) at least of X1, X2 and X3 is other than hydrogen, and (2) X2 is other than hydroxy, when X1 and X3 are hydrogen.
摘要:
A compound of formula (I) wherein n is 0 to 4; R is ethyl or vinyl; R1 is hydrogen or (C1-6)alkyl, R2 is hydrogen or cycloalkyl including (C3-6)cycloalkyl, or unsubstituted (C1-6)alkyl, or (C1-6)alkyl substituted by one or more of hydroxy; preferably one or two, halogen, (C3-6)cycloalkyl, or R1 is hydroxy and R2 is formyl.