4-Bromo-2-(1-hydroxy-ethyl)-3-hydroxymethyl-5-methoxy-phenol 在
sodium periodate 作用下,
以
丙酮 为溶剂,
生成 (R)-7-Bromo-8-hydroxymethyl-6-methoxy-2-methyl-1-oxa-spiro[2.5]octa-5,7-dien-4-one 、 (S)-7-Bromo-8-hydroxymethyl-6-methoxy-2-methyl-1-oxa-spiro[2.5]octa-5,7-dien-4-one