9,9,9a-trimethyl-2,3,9,9a-tetrahydrooxazolo[3,2-a]indole 、
3-formyl-2-hydroxy-5-nitrobenzyl monoaza-18-crown-6 以
乙醇 为溶剂,
反应 5.0h,
以62%的产率得到1'-(2-hydroxyethyl)-3',3'-dimethyl-6-nitro-8-[16-(1,4,7,10,13-pentaoxa-16-azacyclooctadecyl)methyl]spiro[2H-1-benzopyran-2,2'-indoline]