会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 10. 发明申请
    • PROCESS FOR PREPARING (R OR S)-5-{1-AZIDO-3-[6-METHOXY-5-(3-METHOXY-PROPOXY)-PYRIDIN-3-YLMETHYL]-4-METHYL-PENTYL}-3-ALKYL-DIHYDRO-FURAN-2-ONE
    • (R OR S)-5- {1-氨基-3- [6-甲氧基-5-(3-甲氧基 - 丙氧基) - 吡啶-3-基]甲基] -4-甲基戊-3-炔酸的方法 - 二氢 - 呋喃-2-酮
    • WO2008113835A9
    • 2009-02-19
    • PCT/EP2008053323
    • 2008-03-19
    • SPEEDEL EXPERIMENTA AGHEROLD PETERMAH ROBERTSTUTZ STEFANSTOJANOVIC ALEKSANDARLYOTHIER ISABELLEBEHNKE DIRK
    • HEROLD PETERMAH ROBERTSTUTZ STEFANSTOJANOVIC ALEKSANDARLYOTHIER ISABELLEBEHNKE DIRK
    • C07D213/69
    • C07D213/69C07D405/06
    • Compounds of the formula (E), in which R'3 is isopropyl and R'4 is C1-C8-alkyl, and in which the carbon atom to which the R'3 radical is bonded has either (R) or (S) configuration, preference being given to (R) configuration, are obtainable in high yields A) by a stereoselective addition of isopropyl-substitutedpropionic esters to 6- methoxy-5-(3-methoxypropoxy)pyridine-3-carbaldehyde to give corresponding 2- {hydroxy-[6-methoxy-5-(3-methoxypropoxy)pyridin-3-yl]methyl}-3-methylbutanoic esters, subsequent conversion of the OH group to a leaving group, and a subsequent regioselective elimination to give 2-[1-[6-methoxy-5-(3-methoxypropoxy)pyridin-3-yl]- meth-(E)-ylidene]-3-methylbutanoic esters, followed by 1) hydrolysis to give the corresponding 2-[1-[6-methoxy-5-(3-methoxypropoxy)- pyridin-3-yl]meth-(E)-ylidene]-3-methylbutanoic acid, the enantioselective hydrogenation thereof to the corresponding chiral 2-[6-methoxy-5-(3-methoxy- propoxy)pyridin-3-ylmethyl]-3-methylbutanoic acid and the reduction thereof,or 2) hydrolysis to the corresponding 2-[1-[6-methoxy-5-(3-methoxypropoxy)pyridin-3- yl]meth-(E)-ylidene]-3-methylbutanoic acid, the reduction thereof to the corresponding 2-[1-[6-methoxy-5-(3-methoxypropoxy)pyridin-3-yl]meth-(E)-ylidene]-3- methylbutan-1-ol and the enantioselective hydrogenation thereof, or 3) reduction to the corresponding 2-[1-[6-methoxy-5-(3-methoxypropoxy)pyridin-3-yl]- meth-(E)-ylidene]-3-methylbutan-1-ol and the enantioselective hydrogenation thereof, or B) by a Sonogashira coupling of 5-bromo-2-methoxy-3-(3-methoxypropoxy)pyridine, SP-P2216_ATE -80- 5-iodo-2-methoxy-3-(3-methoxypropoxy)pyridine or of trifluoromethanesulphonic acid 6-methoxy-5-(3-methoxypropoxy)pyridin-3-yl ester with 2-propyn-1-ol to give 3-[6- methoxy-5-(3-methoxypropoxy)pyridin-3-yl]prop-2-yn-1-ol, followed by addition of an R' 3-Grignard compound to give 2-[1-[6-methoxy-5-(3-methoxypropoxy)pyridin-3-yl]- meth-(E)-ylidene]-3-methylbutan-1-ol and the enantioselective hydrogenation thereof; substitution of the chiral 2-[6-methoxy-5-(3-methoxy-propoxy)-pyridin-3-ylmethyl]-3- methyl-butan-1-ol resulting from pathways A) or B)to give 5-(2-halomethyl-3-methyl- butyl)-2-methoxy-3-(3-methoxy-propoxy)-pyridine, coupling thereof with a (E)-(R)-5- halo-2-alkyl-pent-4-enoic acid amide, followed by halogenation,hydroxylation lactonizatization and azidation.
    • 式(E)的化合物,其中R'3是异丙基,R'4是C1-C8-烷基,并且其中R'3基团键合的碳原子具有(R)或(S) 通过立体选择性地向6-甲氧基-5-(3-甲氧基丙氧基)吡啶-3-甲醛中加入异丙基取代的丙酸酯,得到相应的2- { 羟基 - [6-甲氧基-5-(3-甲氧基丙氧基)吡啶-3-基]甲基} -3-甲基丁酸酯,随后OH基转化为离去基团,随后进行区域选择性消除,得到2- [1 - [6-甲氧基-5-(3-甲氧基丙氧基)吡啶-3-基] - 甲基 - (E) - 亚基] -3-甲基丁酸酯,然后1)水解,得到相应的2- [1- [6 - 甲氧基-5-(3-甲氧基丙氧基) - 吡啶-3-基]甲基 - (E) - 亚基] -3-甲基丁酸,其对映选择性氢化为相应的手性2- [6-甲氧基-5-(3 - 甲氧基 - 丙氧基)吡啶-3-基甲基] -3-甲基丁酸, 或者2)水解成相应的2- [1- [6-甲氧基-5-(3-甲氧基丙氧基)吡啶-3-基]甲基 - (E) - 亚基] -3-甲基丁酸,还原 的相应的2- [1- [6-甲氧基-5-(3-甲氧基丙氧基)吡啶-3-基]甲基 - (E) - 亚基] -3-甲基丁-1-醇及其对映选择性氢化,或 3)还原为相应的2- [1- [6-甲氧基-5-(3-甲氧基丙氧基)吡啶-3-基] - 甲基 - (E) - 亚基] -3-甲基丁-1-醇和对映选择性氢化 ,或B)通过5-溴-2-甲氧基-3-(3-甲氧基丙氧基)吡啶,SP-P2216_ATE -80- 5-碘-2-甲氧基-3-(3-甲氧基丙氧基)吡啶的Sonogashira偶联或 的三氟甲磺酸6-甲氧基-5-(3-甲氧基丙氧基)吡啶-3-基酯与2-丙炔-1-醇反应,得到3- [6-甲氧基-5-(3-甲氧基丙氧基)吡啶-3-基] 丙-2-炔-1-醇,然后加入R'3-格氏化合物,得到2- [1- [6-甲氧基-5-(3-甲氧基丙氧基)吡啶-3-基] - 甲基( E) - 亚基] -3-甲基丁-1-醇和对映选择性氢 其基因; 取代由途径A)或B)得到的手性2- [6-甲氧基-5-(3-甲氧基 - 丙氧基) - 吡啶-3-基甲基] -3-甲基 - 丁-1-醇,得到5-( -2-甲氧基-3-(3-甲氧基 - 丙氧基) - 吡啶,与(E) - (R)-5-卤代-2-烷基 - 戊-4 - 烯酸酰胺,然后卤化,羟基化内酯化和叠氮化。