(6-amino-4-chloro-5-nitropyridin-2-yl)carbamate   、                                                                                      
(2S,3S)-2,3-Dihydroxy-succinic acid; compound with 4-((1R,2S)-2-amino-1-hydroxy-propyl)-phenol                                                                                                                                                              在
                                                                                                                                                                                 
三乙胺                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙醇                                                                                  为溶剂,
                                                                                                                                                    反应 21.0h,
                                                                                                                以602 mg的产率得到ethyl <(1S,2R)-6-amino-4-<<2-hydroxy-2-(4-hydroxyphenyl)-1-methylethyl>amino>-5-nitropyridin-2-yl>carbamate