3,7-dimethyl-9-(2,6,6-trimethyl-cyclohex-1-enyl)-nona-2,4,6-trien-8-ynoic acid ethyl ester 在
lithium aluminium tetrahydride 、
乙醚 作用下,
生成 9,10-dioxo-9,10-dihydro-anthracene-2-carboxylic acid-[3,7-dimethyl-9-(2,6,6-trimethyl-cyclohex-1-enyl)-nona-2,4,6-trien-8-ynyl ester]