SYNTHESIS AND BIOLOGICAL EVALUATION OF A FLUORINATED ANALOG OF THE β-ADRENERGIC BLOCKING AGENT, METOPROLOL
摘要:
Both enantiomers of a difluorinated metoprolol analog (1) were synthesized in enantiomerically pure form and evaluated as P-adrenergic blocking agents. (C) 1997 Elsevier Science Ltd.
SYNTHESIS AND BIOLOGICAL EVALUATION OF A FLUORINATED ANALOG OF THE β-ADRENERGIC BLOCKING AGENT, METOPROLOL
摘要:
Both enantiomers of a difluorinated metoprolol analog (1) were synthesized in enantiomerically pure form and evaluated as P-adrenergic blocking agents. (C) 1997 Elsevier Science Ltd.
Rare earth-Li-BINOL complexes were used to catalyze nitroaldolreactions of α,α-difluoro adehydes with nitromethane in a good enantioselective manner. The optical yields of nitroaldol 2a depend on the size of rare earth metals, and an Sm-Li-BINOL complex gave the highest enantioselectivity. The enantiotopic face selection of α,α-difluoro aldehyde 1a was found to be different from that of nonfluorinated