2-甲基-1,7-二氧杂螺<5.5>十一碳-2-烯-4-酮 、
(1S,2R,4R,5S)-2-Furan-2-yl-2,4-dihydroxy-5-methyl-5-phenylselanyl-cyclohexanecarboxylic acid 生成 (1S,4R,6R)-6-Furan-2-yl-4,6-dihydroxy-3-methyl-cyclohex-2-enecarboxylic acid (2R,4R,6R)-2-methyl-1,7-dioxa-spiro[5.5]undec-4-yl ester 、 (1S,2R,4R)-2-Furan-2-yl-2,4-dihydroxy-5-methylene-cyclohexanecarboxylic acid (2R,4R,6R)-2-methyl-1,7-dioxa-spiro[5.5]undec-4-yl ester