Preparation of asymmetric cyclic ureas through a monoacylated diamine intermediate
    2.
    发明授权
    Preparation of asymmetric cyclic ureas through a monoacylated diamine intermediate 有权
    通过单酰化二胺中间体制备不对称环脲

    公开(公告)号:US06218534B1

    公开(公告)日:2001-04-17

    申请号:US09166507

    申请日:1998-10-05

    IPC分类号: C07D40310

    摘要: A process for the preparation of asymmetric cyclic ureas of Formula (VI) starting from the diamine of Formula (I). In the process, a compound of Formual (I), wherein G is a group selected from —C(—CH2CH2CH2CH2CH2—)—, —C(CH2CH3)2—, —C(CH3)(CH2CH3)—, —C(CH2CH2CH2CH3)2—, —C(CH3)(CH2CH(CH3)CH3)—, —CH(phenyl)—, —CH2—, —C(CH3)2—, and —C(OCH3)(CH2CH2CH3)—, is selectively monoacylated with an acylating agent to give an asymmetric monoacylated diamine, 2) the asymmetric monoacylated diamine is contacted with an aldehdye and a reducing agent to form a monoalkylated monoacylated diamine, 3) the monoalkylated monoacylated diamine is contacted with a strong base to form a monoalkylated de-acylated diamine, 4) the monoalkylated de-acylated diamine is contacted with 3-cyano-4-fluoro-benzaldehyde and a reducing agent to form a dialkylated diamine, and 5) the dialkylated diamine is contacted with phosgene in the presence of a base to form a compound of Formula (VI). The invention allows for scalable preparation of a wide variety of asymmetrical cyclic ureas useful as HIV protease inhibitors for the treatment of HIV infection.

    摘要翻译: 从式(I)的二胺开始制备式(VI)的不对称环脲的方法。 在该方法中,式(I)的化合物,其中G是选自-C(-CH 2 CH 2 CH 2 CH 2 CH 2 - ) - , - C(CH 2 CH 3)2 - , - C(CH 3)(CH 2 CH 3) - , - C(CH 2 CH 2 CH 2 CH 3 ) - , - C(CH 3)(CH 2 CH(CH 3)CH 3) - , - CH(苯基) - , - CH 2 - , - C(CH 3)2 - 和-C(OCH 3)(CH 2 CH 2 CH 3) 用酰化剂单酰化以产生不对称的单酰化二胺,2)不对称单酰化二胺与醛缩二乙醇和还原剂接触以形成单烷基化单酰化二胺,3)单烷基化单酰化二胺与强碱接触以形成单烷基化 去酰化二胺,4)使单烷基化的脱酰基二胺与3-氰基-4-氟 - 苯甲醛和还原剂接触以形成二烷基化二胺,和5)二烷基化二胺在光气存在下与光气接触 碱形成式(VI)的化合物。 本发明允许可扩展地制备用作治疗HIV感染的HIV蛋白酶抑制剂的各种不对称环脲。

    Process for the preparation of cyclopropylacetylene
    3.
    发明授权
    Process for the preparation of cyclopropylacetylene 失效
    环丙基乙炔的制备方法

    公开(公告)号:US06359164B1

    公开(公告)日:2002-03-19

    申请号:US09408132

    申请日:1999-09-30

    IPC分类号: C07C500

    摘要: The present invention relates generally to novel methods for the preparation of cyclopropylacetylene which is an essential reagent in the asymmetric synthesis of (S)-6-chloro-4-cyclopropylethynyl-4-trifluoromethyl-1,4-dihydro-2H-3,1-benzoxazin-2-one; a useful human immunodeficiency virus (HIV) reverse transcriptase inhibitor with superior anti-retroviral activity. In the process, for example, cyclopropane carboxaldehyde is alkylated to form 1,1,1-trichloro-2-cyclopropyl-ethanol; which in turn undergoes elimination to form 1,1-dichloro-2-cyclopropyl-ethene; which in turn undergoes elimination to form cyclopropyl acetylene.

    摘要翻译: 本发明一般涉及制备环丙基乙炔的新方法,它是不对称合成(S)-6-氯-4-环丙基乙炔基-4-三氟甲基-1,4-二氢-2H-3,1 苯并恶嗪-2-酮; 有效的人类免疫缺陷病毒(HIV)逆转录酶抑制剂具有优异的抗逆转录病毒活性。 在此过程中,例如将环丙烷甲醛烷基化形成1,1,1-三氯-2-环丙基 - 乙醇; 其又进行消除以形成1,1-二氯-2-环丙基 - 乙烯; 其又进行消除以形成环丙基乙炔。

    Process for the preparation of cyclopropylacetylene
    4.
    发明授权
    Process for the preparation of cyclopropylacetylene 有权
    环丙基乙炔的制备方法

    公开(公告)号:US06297410B1

    公开(公告)日:2001-10-02

    申请号:US09481812

    申请日:2000-01-12

    IPC分类号: C07C202

    摘要: The present invention relates generally to novel methods for the synthesis of cyclopropylacetylene which is an essential reagent in the asymmetric synthesis of (S)-6-chloro-4-cyclopropylethynyl-4-trifluoromethyl-1,4-dihydro-2H-3,1-benzoxazin-2-one; a useful human immunodeficiency virus (HIV) reverse transcriptase inhibitor. In the process, cyclopropane carboxaldehyde is condensed with malonic acid to form 3-cyclopropylacrylic acid; 3-cyclopropylacrylic acid is halogenated to form (E,Z)-1-halo-2-cyclopropylethylene; and (E,Z)-1-halo-2-cyclopropylethylene is dehydrohalogenated to form cyclopropyl acetylene. This improvement provides for high conversion of inexpensive, readily available starting materials into cyclopropylacetylene, high overall yields and can be conducted on an industrial scale.

    摘要翻译: 本发明一般涉及用于合成环己基乙炔的新方法,其是不对称合成(S)-6-氯-4-环丙基乙炔基-4-三氟甲基-1,4-二氢-2H-3,1 苯并恶嗪-2-酮; 一种有用的人类免疫缺陷病毒(HIV)逆转录酶抑制剂。 在此过程中,环丙烷甲醛与丙二酸缩合形成3-环丙基丙烯酸; 将3-环丙基丙烯酸卤化形成(E,Z)-1-卤代-2-环丙基乙烯; 和(E,Z)-1-卤代-2-环丙基乙烯脱卤化氢形成环丙基乙炔。 这种改进提供了廉价的,容易获得的起始原料转化成环丙基乙炔的高转化率,高的总收率并且可以在工业规模上进行。

    Process for the preparation of cyclopropylacetylene
    6.
    发明授权
    Process for the preparation of cyclopropylacetylene 有权
    环丙基乙炔的制备方法

    公开(公告)号:US06288297B1

    公开(公告)日:2001-09-11

    申请号:US09410481

    申请日:1999-09-30

    IPC分类号: C07C1207

    摘要: The present invention relates generally to novel methods for the synthesis of cyclopropylacetylene which is an essential reagent in the asymmetric synthesis of (S)-6-chloro-4-cyclopropylethynyl-4-trifluoromethyl-1,4-dihydro-2H-3,1-benzoxazin-2-one; a useful human immunodeficiency virus (HIV) reverse transcriptase inhibitor. In the process, for example, cyclopropane carboxaldehyde is alkylated to form 1,1,1-trichloro-2-cyclopropyl-ethanol; which in turn is hydroxy protected to form 1,1,1-trichloro-2-cyclopropylethyltosylate; which in turn undergoes elimination to form cyclopropyl acetylene. This improvement provides for high conversion of inexpensive, readily available starting materials into cyclopropylacetylene, high overall yields and can be conducted on an industrial scale.

    摘要翻译: 本发明一般涉及用于合成环己基乙炔的新方法,其是不对称合成(S)-6-氯-4-环丙基乙炔基-4-三氟甲基-1,4-二氢-2H-3,1 苯并恶嗪-2-酮; 一种有用的人类免疫缺陷病毒(HIV)逆转录酶抑制剂。 在此过程中,例如将环丙烷甲醛烷基化形成1,1,1-三氯-2-环丙基 - 乙醇; 其又被羟基保护形成1,1,1-三氯-2-环丙基乙基苯磺酸盐; 其又进行消除以形成环丙基乙炔。 这种改进提供了廉价的,容易获得的起始原料转化成环丙基乙炔的高转化率,高的总收率并且可以在工业规模上进行。

    Process for the preparation of cyclopropylacetylene
    8.
    发明授权
    Process for the preparation of cyclopropylacetylene 失效
    环丙基乙炔的制备方法

    公开(公告)号:US6049019A

    公开(公告)日:2000-04-11

    申请号:US126582

    申请日:1998-07-30

    摘要: The present invention relates generally to novel methods for the synthesis of cyclopropylacetylene which is an essential reagent in the asymmetric synthesis of (S)-6-chloro-4-cyclopropylethynyl-4-trifluoromethyl-1,4-dihydro-2H-3,1-benzoxazin-2-one; a useful human immunodeficiency virus (HIV) reverse transcriptase inhibitor. In the process, cyclopropane carboxaldehyde is condensed with malonic acid to form 3-cyclopropylacrylic acid; 3-cyclopropylacrylic acid is halogenated to form (E,Z)-1-halo-2-cyclopropylethylene; and (E,Z)-1-halo-2-cyclopropylethylene is dehydrohalogenated to form cyclopropyl acetylene. This improvement provides for high conversion of inexpensive, readily available starting materials into cyclopropylacetylene, high overall yields and can be conducted on an industrial scale.

    摘要翻译: 本发明一般涉及用于合成环己基乙炔的新方法,其是不对称合成(S)-6-氯-4-环丙基乙炔基-4-三氟甲基-1,4-二氢-2H-3,1 苯并恶嗪-2-酮; 一种有用的人类免疫缺陷病毒(HIV)逆转录酶抑制剂。 在此过程中,环丙烷甲醛与丙二酸缩合形成3-环丙基丙烯酸; 将3-环丙基丙烯酸卤化形成(E,Z)-1-卤代-2-环丙基乙烯; 和(E,Z)-1-卤代-2-环丙基乙烯脱卤化氢形成环丙基乙炔。 这种改进提供了廉价的,容易获得的起始原料转化成环丙基乙炔的高转化率,高的总收率并且可以在工业规模上进行。