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    • 3. 发明授权
    • Preparation of asymmetric cyclic ureas through a monoacylated diamine intermediate
    • 通过单酰化二胺中间体制备不对称环脲
    • US06218534B1
    • 2001-04-17
    • US09166507
    • 1998-10-05
    • Benjamin R. P. StoneLuigi AnzaloneJoseph M. FortunakGregory D. HarrisIoannis I. ValvisRobert E. Waltermire
    • Benjamin R. P. StoneLuigi AnzaloneJoseph M. FortunakGregory D. HarrisIoannis I. ValvisRobert E. Waltermire
    • C07D40310
    • C07D491/04C07D243/04C07D317/14
    • 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.
    • 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。