[(3R,4S,5R,6S)-4,5-diacetyloxy-6-[4-(4-chlorophenyl)-3-cyano-6-methyl-5-[(4-methylphenyl)carbamoyl]pyridin-2-yl]sulfanyloxan-3-yl] acetate                                                                                                                                                              在
                                                                                                                                                                                 
甲醇   、                                                                                                  
氨                                                                                                                                  作用下,
                                                                                                                                                                                                                            以78%的产率得到4-(4-chlorophenyl)-5-cyano-2-methyl-N-(4-methylphenyl)-6-[(2S,3R,4S,5R)-3,4,5-trihydroxyoxan-2-yl]sulfanylpyridine-3-carboxamide