| 摘要 |
3-Hexatrienyl-2H-chromene derivs. of formula (I) and their stereoisomers and salts are new: R1-R4=H, halogen, R1,OR', adamantyl, or opt. substd. phenyl, furyl, pyrrolyl, pyrrolidinyl, thienyl, pyridyl, piperidyl, indolyl or quinolyl; R'=1-6C alkyl opt. substd. by OH and/or halogen; R5-R7=H or 1-6C alkyl; R8=COOR9, PO(OR9)2 or CONHR10; R9=H, 1-6C alkyl or an amino sugar residue; R10=H, 1-6C alkyl or opt. substd. aryl; with provisos. |
