The present invention relates a new process to synthesize 6-(7-((1-aminocyclo-propyl)-methoxy)-6-methoxyquinolin-4-yloxy)-N-methyl-1-naphthamide (AL3810) by deprotection of substituted benzyl 1-((6-methoxy-4-(5-(methylcarbamoyl)naphthalen-2-yloxy)quinolin-7-yloxy)-methyl)cyc-lopropylcarbamate (Formula I) under a diluted or weak acidic condition. A stable crystalline form of 6-(7-((1-aminocyclo-propyl)-methoxy)-6-methoxyquinolin-4-yloxy)-N-methyl-1-naphthamide has also been prepared.
本发明涉及一种新的合成6-(7-((1-
氨基环丙基)-甲氧基)-
6-甲氧基喹啉-4-氧基)-
N-甲基-1-
萘酰胺(AL3810)的方法,通过在稀释或弱酸性条件下脱保护取代苄基1-((6-甲氧基-4-(5-(甲基
氨基)-
萘-2-氧基)
喹啉-7-氧基)-甲基)环
丙基氨基甲酸酯(式I)。还制备了一种稳定的结晶形式的6-(7-((1-
氨基环丙基)-甲氧基)-
6-甲氧基喹啉-4-氧基)-
N-甲基-1-
萘酰胺。