溴甲烷 、 (
S)-3-hydroxy-2-phenyl-propionic acid 9-ethoxycarbonylmethyl-(1
rN,2
tH,4
tH,5
cN)-3-oxa-9-aza-tricyclo[3.3.1.0
2,4]non-7
t-yl ester 以
乙腈 为溶剂,
生成
8ξ-ethoxycarbonylmethyl-6exo,7exo-epoxy-8ξ-methyl-3endo-L-tropoyloxy-nortropanium; bromide