乙酸酐   、                                                                                      
(7S,8R,9R,10S)-10-[[9-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]purin-6-yl]amino]-7,8,9,10-tetrahydrobenzo[a]pyrene-7,8,9-triol                                                                                                                                                              在
                                                                                                                                                                                 
吡啶                                                                                                                                  作用下,
                                                                                                                                                                                                                            生成                                                 Acetic acid (7S,8R,9R,10S)-8,9-diacetoxy-10-[9-((2R,3R,4R,5R)-3,4-diacetoxy-5-acetoxymethyl-tetrahydro-furan-2-yl)-9H-purin-6-ylamino]-7,8,9,10-tetrahydro-benzo[def]chrysen-7-yl ester