长川霉素                                                                                                                                                                                              以
                                                                                         
二甲基亚砜                                                                                  为溶剂,
                                                                                                                                                    反应 48.0h,
                                                                                                                以6.8 mg的产率得到(3S,5S,6R,7S,9R,10R,18S,21S,22R,23S,29R)-29-ethyl-10,23,25-trihydroxy-21-[(E)-1-[(1R,3R,4R)-4-hydroxy-3-methoxycyclohexyl]prop-1-en-2-yl]-5,7-dimethoxy-3,9,22-trimethyl-20,26,30-trioxa-13-azatetracyclo[23.2.2.16,10.013,18]triacont-1(28)-ene-11,12,19-trione