| 摘要 |
<p>Pipecolic acid derivs. of formula (I) are new. R1=H or Me; R3=formyl, -COCH2R4, -CONHSO2R5, -CH2N(OH)COR6, -XCO2C2H5, -CHR7(CH2)nOH, -CR8N=OH, 1H-imidazol- 4(5)-yl, 4,5-dihydro-1H-imidazol-4(5)-yl, 1H-pyrazol-4-yl, 1H-pyrazol-5-yl, isoxazol-4-yl, isoxazol-5-yl, oxazol-4-yl, oxazol-5-yl, 4,5-dihydro-oxazol-4-yl, 4,5-dihydro-oxazol-5-yl, 1H-triazol-4(5)-yl, 1,2,4-oxa-diazol-3-yl, 1,2,4-oxadiazol-5-yl or 1,3,4-oxadiazol- 2-yl, opt. substd. by OH and/or ZH; Z=O, S or imino; R4=OH, 1-4C alkoxycarbonyl or (1,1-dimethylethyl)dimethylsilyloxy; R5=1-4C alkyl or phenyl (1-4C alkyl); R6=amino, 1-4C alkyl or phenyl(1-4C) alkoxy; X=1,2-dioxoethane-1,2-diyl or 1-4C-alkanoyloxymethyl; R7=OH; n=1-4; R8=H or 1-4C alkyl.</p> |
