N-{(1R,2S,5S)-2-{[(5-chloroindol-2-yl)carbonyl]amino}-5-[methoxy(methyl)carbamoyl]cyclohexyl}-5-methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine-2-carboxamide   、                                                                                      
甲基锂                                                                                                                                                                                              以
                                                                                         
四氢呋喃                                                                                  为溶剂,
                                                                                                                                                                                        以60%的产率得到N-[(1R,2S,5S)-5-acetyl-2-{[(5-chloroindol-2-yl)carbonyl]amino}cyclohexyl]-5-methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine-2-carboxamide