calcium α-isosaccharinate                                                                                                                                                              在
                                                                                                                                                                                 
硝酸                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
水                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 
2-C-Carboxy-2-desoxy-D-glycero-pentarsaeure   、                                                                                             
3-deoxy-2-C-hydroxymethyl-D-erythro-pentono-1,5-lactone   、                                                                                             3-deoxy-2-C-hydroxymethyl-D-erythro-pentaric acid   、                                                                                             1,4-lactone of (2R,4S)- and (2S,4S)-2-C-carboxy-3-deoxy-D-glycero-pentaric acid