(R)-(5'Z,4''E,8''E,12''E)-2-[5'-(5'',9'',13'',17''-tetramethyloctadeca-4'',8'',12'',16''-tetraenylidene)tetrahydropyran-2'-yl]propenal                                                                                                                                                              在
                                                                                                                                                                                 
sodium chlorite   、                                                                                                  
2-甲基-2-丁烯   、                                                                                                  
叔丁醇                                                                                                                                  作用下,
                                                                                                                                                                                                                            生成                                                 (R)-(5'Z,4''E,8''E,12''E)-2-[5'-(5'',9'',13'',17''-tetramethyloctadeca-4'',8'',12'',16''-tetraenylidene)tetrahydropyran-2'-yl]propenoic acid