三氟甲磺酸三甲基硅酯   、                                                                                      
(R)-4-{(R)-3-[(S)-2,2-dimethyl[1,3]dioxolan-4-yl]-3-hydroxyhexa-4,5-dien-1-ynyl}-2,2-dimethyl-6,6a-dihydro-3aH-cyclopenta[d][1,3]dioxole-3a-carbaldehyde                                                                                                                                                              在
                                                                                                                                                                                 
2,6-二甲基吡啶                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                                                        以67%的产率得到(R)-4-{(R)-3-[(S)-2,2-dimethyl[1,3]dioxolan-4-yl]-3-trimethylsilyoxyhexa-4,5-dien-1-ynyl}-2,2-dimethyl-6,6a-dihydro-3aH-cyclopenta[d][1,3]dioxole-3a-carbaldehyde