methyl (R)-2-[(2,5-dichlorothien-3-yl)carbonyl]-3-N-(2-hydroxy-1-methylethylamino)acrylate                                                                                                                                                              在
                                                                                                                                                                                 sodium hydride                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
四氢呋喃   、                                                                                         mineral oil                                                                                  为溶剂,
                                                                                                                                                                                        以62%的产率得到methyl (R)-2-chloro-7-[N-(2-hydroxy-1-methylethyl)]-4-oxo-4,7-dihydrothieno[2,3-b]pyridine-5-carboxylate