N-[(R)-3-heptanoyloxytetradecanoyl]-L-serine benzyl ester   、                                                                                      
2-deoxy-4-O-diphenylphosphono-3-O-[(R)-3-heptanoyloxytetradecanoyl]-6-O-(2,2,2-trichloro-1,1-dimethylethoxycarbonyl)-2-(2,2,2-trichloroethoxycarbonylamino)-α-D-glucopyranosyl chloride                                                                                                                                                              在
                                                                                                                                                                                 silver trifluoromethanesulfonate   、                                                                                                  4 A molecular sieve   、                                                                                                  trans lactol   、                                                                                                  
草酰氯                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
1,2-二氯乙烷   、                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                                                        以69%的产率得到N-[(R)-3-heptanoyloxytetradecanoyl]-O-[2-deoxy-4-O-diphenyl phosphono-3-O-[(R)-3-heptanoyloxytetradecanoyl]-6-O-(2,2,2-trichloro-1,1-dimethylethoxycarbonyl)-2-(2,2,2-trichloroethoxycarbonylamino)-β-D-glucopyranosyl]-L-serine benzyl ester