[(2S,3R,4S,6R)-4-(dimethylamino)-2-[[(2R,4R,5R,6S,7S,8R,11R,12S,19R,20R)-11-ethyl-7-hydroxy-4-methoxy-2,4,6,8,12,17,17,19-octamethyl-9,14-dioxo-10,13-dioxa-15,18-diazatricyclo[10.6.2.015,20]icos-1(18)-en-5-yl]oxy]-6-methyloxan-3-yl] acetate                                                                                                                                                              在
                                                                                                                                                                                 
甲醇                                                                                                                                  作用下,
                                                                                                                                                                                                                            以28.0 g的产率得到11-amino-9-deoxo-11-deoxy-9,11-N-(2,2-dimethyl)nitriloethano-5-O-desosaminyl-6-O-methylerythronolide A 11,12-cyclic carbamate