申请人:MERCK & CO INC
公开号:WO2005044264A1
公开(公告)日:2005-05-19
The present invention provides an efficient synthesis for the preparation of ((1R,3S)-3-isopropyl-3-[3-(trifluoromethyl)-7,8-dihydro-1,6-naphthyridin-6(5H)-yl]carbonyl}cyclopentyl)[(3S,4S)-3-m ethoxytetrahydro-2H-pyran-4-yl]amine and its succinate salt. The present invention additionally provides an efficient syntheses for the preparation of intermediates (3R)-3-methoxytetrahydro-4H-pyran-4-one; (1S,4S)-4-(2,5-dimethyl-1H-pyrrol-1-yl)-1-isopropylcyclopent-2-ene-1-carboxylic acid; and 3-(trifluoromethyl)-5,6,7,8-tetrahydro-1,6-naphthyridine; and for the preparation of the precursor (3S,4S)-N-((1S,4S)-4-isopropyl-4-[3-(trifluoromethyl)-7,8-dihydro-1,6-naphthyridin-6(5H)-yl]carbonyl}cyclopent-2-e n-1-yl)-3-methoxytetrahydro-2H-pyran-4-amine. The invention additionally resides in the superior properties of the succinate salt of ((1R,3S)-3-isopropyl-3-[3-(trifluoromethyl)-7,8-dihydro-1,6-naphthyridin-6(5H)-yl]carbonyl}cyclopentyl)[(3S,4S)-3-m ethoxytetrahydro-2H-pyran-4-yl]amine.
本发明提供了一种高效合成方法,用于制备((1R,3S)-3-异丙基-3-[3-(三氟甲基)-7,8-二氢-1,6-萘啶-6(5H)-基]羰基}环戊基)[(3S,4S)-3-甲氧基四氢-2H-吡喃-4-基]胺及其琥珀酸盐。本发明还提供了一种高效合成方法,用于制备中间体(3R)-3-甲氧基四氢-4H-吡喃-4-酮;(1S,4S)-4-(2,5-二甲基-1H-吡咯-1-基)-1-异丙基环戊-2-烯-1-羧酸;以及3-(三氟甲基)-5,6,7,8-四氢-1,6-萘啶;以及用于制备前体(3S,4S)-N-((1S,4S)-4-异丙基-4-[3-(三氟甲基)-7,8-二氢-1,6-萘啶-6(5H)-基]羰基}环戊-2-烯-1-基)-3-甲氧基四氢-2H-吡喃-4-胺。该发明还涉及((1R,3S)-3-异丙基-3-[3-(三氟甲基)-7,8-二氢-1,6-萘啶-6(5H)-基]羰基}环戊基)[(3S,4S)-3-甲氧基四氢-2H-吡喃-4-基]胺的琥珀酸盐的优越性能。