Potassium; [((Z)-2-hydroxy-3-methoxycarbonyl-allyl)-(1-oxo-1,2,3,4-tetrahydro-naphthalen-2-yl)-carbamoyl]-methanoate                                                                                                                                                              在
                                                                                                                                                                                 
盐酸                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
氯仿                                                                                  为溶剂,
                                                                                                                                                                                        以3.95 g的产率得到methyl 1,2,3,4,5,6-hexahydro-1-(1',2',3',4'-tetrahydro-1'-oxo-2'-naphthalenyl)-3,5-dihydroxy-2-oxopyridine-4-carboxylate