The present invention relates a new process to synthesize 6-(7-((l-aminocyclo-propyl)- methoxy)-6-methoxyquinolin-4-yloxy)-N-methyl- l -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-((l-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过程,通过在稀释或弱酸性条件下去保护取代
苄基1-((6-甲
氧基-4-(5-(
甲基氨甲酰)
萘-2-
氧基)
喹啉-7-
氧基)-
甲基)环
丙基氨基甲酸酯(
化学式I),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)通过
脱保护。同时还制备了6-(7-((1-
氨基环丙基)-甲
氧基)-
6-甲氧基喹啉-4-
氧基)-
N-甲基-1-
萘酰胺的稳定晶型。