7'
t-((
S)-3-hydroxy-2-phenyl-propionyloxy)-1,3-dihydro-(1'
rN,2'
tH,4'
tH,5'
cN)-spiro[isoindolium-2,9'-(3-oxa-9-aza-tricyclo[3.3.1.0
2,4]nonanium)]; perchlorate 在
ion-exchange resin (Cl
- form) 作用下,
以
甲醇 为溶剂,
生成
Azoniaspiro<3α-tropoyl-oxy-6,7-epoxy-nortropan-8.2'-isoindolin>-chlorid