3,4-didecyloxy-cyclobut-3-ene-1,2-dione   、                                                                                      (2R,4S,5R,6R)-2-(5-aminopentoxy)-4-hydroxy-5-(2-methylpropanoylamino)-6-[(1R,2R)-1,2,3-trihydroxypropyl]oxane-2-carboxylic acid                                                                                                                                                              在
                                                                                                                                                                                 
三乙胺                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
N,N-二甲基甲酰胺                                                                                  为溶剂,
                                                                                                                                                    反应 11.0h,
                                                                                                                以31 mg的产率得到5-(2-decyloxy-3,4-dioxocyclobut-1-enyl)aminopentyl-[5-N-isobutanoyl-3,5-dideoxy-D-glycero-α-D-galacto-2-nonulopyranosyl]onic acid