22308-09-4
[1-[(4-methylphenyl)sulfonyloxymethyl]cyclobutyl]methyl 4-methylbenzenesulfonate
+
92-44-4
2,3-二羟基萘
→
~80%
65478-51-5
spiro[2,4-dihydrobenzo[h][1,5]benzodioxepine-3,1'-cyclobutane]