(2E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohex-1-en-1-yl)nona-2,8-dien-5-yne-1,4,7-triol

tBDMS-retinol

9-(2',6',6'-trimethyl-1'-cyclohexen-1'-yl)-3,7-dimethyl-1-((tert-butyldimethylsilyl)oxy)-(2E,5Z,8E)-nona-2,5,8-triene-4,7-diol

4-(1,4-二甲基-1-乙基)戊基酚

(+/-)-7-hydroxy-3.7-dimethyl-1t-(2.2.6-trimethyl-cyclohexen-(6)-yl)-nonatrien-(1.3t.5t)-oic acid-(9)-ethyl ester