(2S,3S,4S,5R,6S)-6-[2-(3-aminopropanoylamino)-4-[[1-(chloromethyl)-3-[(E)-3-(4-methoxyphenyl)prop-2-enoyl]-1,2-dihydrobenzo[e]indol-5-yl]carbamoyloxymethyl]phenoxy]-3,4,5-trihydroxyoxane-2-carboxylic acid   、                                                                                      
溴乙酸 N-羟基琥珀酰亚胺酯                                                                                                                                                              在
                                                                                                                                                                                 
N,N-二异丙基乙胺                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
N,N-二甲基甲酰胺                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 
(2S,3S,4S,5R,6S)-6-[2-[3-[(2-bromoacetyl)amino]propanoylamino]-4-[[1-(chloromethyl)-3-[(E)-3-(4-methoxyphenyl)prop-2-enoyl]-1,2-dihydrobenzo[e]indol-5-yl]carbamoyloxymethyl]phenoxy]-3,4,5-trihydroxyoxane-2-carboxylic acid