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
    • 5. 发明授权
    • Chiral reductions of imines leading to the syntheses of optically active
amines
    • 亚胺的手性还原导致光学活性胺的合成
    • US5648541A
    • 1997-07-15
    • US535469
    • 1995-09-28
    • Bradford C. VanWagenenRobert M. Barmore
    • Bradford C. VanWagenenRobert M. Barmore
    • C07C209/44C07C209/52C07C211/27C07C211/29C07C211/30C07C213/02C07C215/46C07C217/54C07C227/04C07C229/38C07C231/18C07C237/30C07C253/30C07C255/58
    • C07C209/52
    • A process for preparing an R enantiomer of a compound of the formula (I): ##STR1## wherein Ar is 3-methoxyphenyl, 3-chlorophenyl, or 1-naphthyl, and X is independently selected from the group consisting of H, F, Cl, Br, I, phenyl, CF.sub.3, CF.sub.2 H, CFH.sub.2, lower alkyl (e.g., Me), O-lower alkyl (e.g., OMe), OCH.sub.2 CF.sub.3, OH, CN, NO.sub.2, C(O)-lower alkyl (e.g., C(O)Me), C(O)O-lower alkyl (e.g., C(O)OMe), C(O)NH-lower alkyl (e.g., C(O)NH--Me), C(O)N-lower alkyl.sub.2 (e.g., C(O)NMe.sub.2), OC(O)-lower alkyl (e.g., OC(O)Me), and NH--C(O)-lower alkyl (e.g., NH--C(O)Me), where "lower alkyl" is selected from a group consisting of 1 to 6 carbon atoms, and m is an integer between 1 and 5, by asymmetrically and enantioselectively reducing an imine with a reducing agent/chiral auxiliary agent complex so as to produce an enantiomeric excess of R enantiomer of the compound of formula (I) over the S enantiomer of the compound of formula (I). The process is especially useful to produce compounds (R)-(+)-N-[1-(3-methoxyphenyl)ethyl]-3-(2-chlorophenyl)propanamine and (R)-(+)-N-[1-(3-methoxyphenyl)ethyl]-3-(phenyl)propanamine. Enantiomeric excess of the R enantiomer over S enantiomer of greater than 65% have been achieved.
    • 制备式(I)化合物的R对映异构体的方法:其中Ar是3-甲氧基苯基,3-氯苯基或1-萘基,X独立地选自H ,F,Cl,Br,I,苯基,CF 3,CF 2 H,CFH 2,低级烷基(例如Me),O-低级烷基(例如OMe),OCH 2 CF 3,OH,CN,NO 2,C(O) (例如C(O)Me),C(O)O-低级烷基(例如C(O)OMe),C(O)NH-低级烷基(例如C(O)NH-Me) O)N-低级烷基2(例如C(O)NMe 2),OC(O) - 低级烷基(例如OC(O)Me)和NH-C(O) - 低级烷基(例如,NH-C O)Me),其中“低级烷基”选自1至6个碳原子,m为1至5之间的整数,通过用还原剂/手性助剂络合物不对称和对映选择性还原亚胺,因此 以便在式(I)化合物的S对映异构体上产生式(I)化合物的对映异构体的对映异构体。 该方法特别适用于制备化合物(R) - (+) - N- [1-(3-甲氧基苯基)乙基] -3-(2-氯苯基)丙胺和(R) - (+) - N- [ - (3-甲氧基苯基)乙基] -3-(苯基)丙胺。 R对映异构体超过S对映异构体的对映体过量已达到大于65%。
    • 6. 发明授权
    • Amine preparation
    • 胺制剂
    • US5504253A
    • 1996-04-02
    • US276214
    • 1994-07-15
    • Bradford C. VanWagenenThomas E. D'Ambra
    • Bradford C. VanWagenenThomas E. D'Ambra
    • C07C213/10C07C217/58C07C233/22C07C209/48C07C209/50
    • C07C217/58C07C213/10C07C233/22
    • A method of making (R)-N- 1-(3-methoxyphenyl)ethyl!-3-(2-chlorobenzene)propanamine which involves reducing the appropriate amidyl or iminyl precursor with an appropriate reducing agent. The appropriate amidyl or iminyl precursor is made from a synthesis involving the use of (R)-3-methoxy-.alpha.-methylbenzylamine. A method of condensing a nitrile with a primary or secondary amine to form an imine involves the reaction of a nitrile with diisobutylaluminum hydride; and then reacting the resultant compound with a primary or secondary amine to form the imine. The process is especially useful for producing enantiomerically pure chiral imines, and, ultimately, amines. Typical such imines have the formula: ##STR1## wherein R, R.sub.1, R.sub.2 and R.sub.3 are independently selected from the group consisting of hydrogen, substituted or unsubstituted alkyl, aryl and aralkyl.
    • 制备(R)-N- [1-(3-甲氧基苯基)乙基] -3-(2-氯苯)丙胺的方法,其涉及用合适的还原剂还原合适的酰胺基或亚氨基前体。 合适的酰氨基或亚氨基前体由涉及使用(R)-3-甲氧基-α-甲基苄胺的合成制备。 将腈与伯胺或仲胺缩合形成亚胺的方法涉及腈与氢化二异丁基铝的反应; 然后使所得化合物与伯胺或仲胺反应形成亚胺。 该方法特别适用于产生对映体纯的手性亚胺,最终产生胺。 典型的这种亚胺具有下式:其中R,R 1,R 2和R 3独立地选自氢,取代或未取代的烷基,芳基和芳烷基。
    • 7. 发明授权
    • Amine preparation
    • 胺制剂
    • US5648540A
    • 1997-07-15
    • US446491
    • 1995-05-22
    • Bradford C. VanWagenenSteven R. DuffWilliam A. NelsonThomas E. D'Ambra
    • Bradford C. VanWagenenSteven R. DuffWilliam A. NelsonThomas E. D'Ambra
    • C07C213/10C07C217/58C07C233/22C07C209/50C07C209/52
    • C07C217/58C07C213/10C07C233/22
    • A method of making (R)-N-[1-(3-methoxyphenyl)ethyl]-3-(2-chlorobenzene)propanamine which involves reducing the appropriate amidyl or iminyl precursor with an appropriate reducing agent. The appropriate amidyl or iminyl precursor is made from a synthesis involving the use of (R)-3-methoxy-.alpha.-methylbenzylamine. A method of condensing a nitrile with a primary or secondary amine to form an imine involves the reaction of a nitrile with diisobutylaluminum hydride; and then reacting the resultant compound with a primary or secondary amine to form the imine. The process is especially useful for producing enantiomerically pure chiral imines, and, ultimately, amines. Typical such imines have the formula: ##STR1## wherein R, R.sub.1, R.sub.2 and R.sub.3 are independently selected from the group consisting of hydrogen, substituted or unsubstituted alkyl, aryl and aralkyl.
    • 制备(R)-N- [1-(3-甲氧基苯基)乙基] -3-(2-氯苯)丙胺的方法,其包括用合适的还原剂还原合适的酰胺基或亚氨基前体。 合适的酰氨基或亚氨基前体由涉及使用(R)-3-甲氧基-α-甲基苄胺的合成制得。 将腈与伯胺或仲胺缩合形成亚胺的方法涉及腈与氢化二异丁基铝的反应; 然后使所得化合物与伯胺或仲胺反应形成亚胺。 该方法特别适用于产生对映体纯的手性亚胺,最终产生胺。 典型的这种亚胺具有下式:其中R,R 1,R 2和R 3独立地选自氢,取代或未取代的烷基,芳基和芳烷基。
    • 8. 发明授权
    • N-((R)-.alpha.-methyl-3-methoxybenzyl)-3-(2-chlorobenzene)propanamide
    • N - ((R)-α-甲基-3-甲氧基苄基)-3-(2-氯苯)丙酰胺
    • US5633404A
    • 1997-05-27
    • US639935
    • 1996-04-19
    • Bradford C. VanWagenenSteven R. DuffWilliam A. Nelson
    • Bradford C. VanWagenenSteven R. DuffWilliam A. Nelson
    • C07C213/10C07C217/58C07C233/22
    • C07C217/58C07C213/10C07C233/22
    • A method of making ( R)- N-[1-(3-methoxyphenyl)ethyl]-3-(2-chlorobenzene)propanamine which involves reducing the appropriate amidyl or iminyl precursor with an appropriate reducing agent. The appropriate amidyl or iminyl precursor is made from a synthesis involving the use of ( R)-3-methoxy-.alpha.-methylbenzylamine. A method of condensing a nitrile with a primary or secondary amine to form an imine involves the reaction of a nitrile with diisobutylaluminum hydride; and then reacting the resultant compound with a primary or secondary amine to form the imine. The process is especially useful for producing enantiomerically pure chiral imines, and, ultimately, amines. Typical such imines have the formula: ##STR1## wherein R, R.sub.1, R.sub.2 and R.sub.3 are independently selected from the group consisting of hydrogen, substituted or unsubstituted alkyl, aryl and aralkyl.
    • 制备(+ E,uns R + EE) - + E,非N + EE - [1-(3-甲氧基苯基)乙基] -3-(2-氯苯)丙胺的方法,其涉及还原合适的酰胺基或亚氨基前体 用合适的还原剂。 合适的酰胺基或亚氨基前体由涉及使用(+ E,不R + EE)-3-甲氧基-α-甲基苄胺的合成制备。 将腈与伯胺或仲胺缩合形成亚胺的方法涉及腈与氢化二异丁基铝的反应; 然后使所得化合物与伯胺或仲胺反应形成亚胺。 该方法特别适用于产生对映体纯的手性亚胺,最终产生胺。 典型的这种亚胺具有下式:其中R,R 1,R 2和R 3独立地选自氢,取代或未取代的烷基,芳基和芳烷基。