(Z)-6-Brom-2-hexensaeure-ethylester 、 (E)-N-[(2S)-2-(methoxymethyl)pyrrolidin-1-yl]-4-methylpentan-2-imine 生成 (+)-(1S,2R)-2-(4-Methyl-2-oxopentyl)cyclopentancarbonsaeure-ethylester 、 (-)-(1R,2S)-2-(4-Methyl-2-oxopentyl)cyclopentancarbonsaeure-ethylester