Acetic acid (2R,3R,4S,5S,6R)-4,5-diacetoxy-6-acetoxymethyl-2-(3-cyano-2-thioxo-2,5,6,7,8,9-hexahydro-cyclohepta[b]pyridin-1-yl)-tetrahydro-pyran-3-yl ester                                                                                                                                                              在
                                                                                                                                                                                 
氨                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                    反应 4.0h,
                                                                                                                以83%的产率得到2-sulfanylidene-1-[(2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]-6,7,8,9-tetrahydro-5H-cyclohepta[b]pyridine-3-carbonitrile