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
    • 7. 发明授权
    • Process for the synthesis of diricinoleyphosphatidylcholine
    • 合成二抗磷脂酰胆碱的方法
    • US06297391B1
    • 2001-10-02
    • US09366744
    • 1999-08-04
    • Giampietro BorsottiEzio BattistelFrancesco CelliniRina Iannacone
    • Giampietro BorsottiEzio BattistelFrancesco CelliniRina Iannacone
    • C07C5300
    • C12P7/6481C07F9/10Y02P20/55
    • Diricinoleylphosphatidylcholine (I) in an optically active form is obtained with good yields and a high purity by means of a process which comprises: a) esterifying the terminal carboxylic group of ricinoleic acid (III) with an alcohol having from 1 to 4 carbon atoms to give the corresponding ester having formula (IV); b) protecting the hydroxylic group of the ester of ricinoleic acid (IV) with a protecting group removable under bland operating conditions and isolating the ester of ricinoleic acid of which the hydroxylic group (V) is protected; c) hydrolyzing the ester of ricinoleic acid of which the hydroxylic group (V) is protected and isolating the ricinoleic acid of which the hydroxylic group (VI) is protected; d) acylating L-&agr;-glycerophosphatidylcholine (II) with an imidazolic or triazolic derivative of the compound having formula (VI) and isolating the diricinoleylphosphatidylcholine of which the hydroxylic group (VII) is protected; e) removing the protecting group from the hydroxylic group of the compound having formula (VII); and finally f) recovering and purifying the compound having formula (I) by means of chromatography.
    • 通过以下方法获得具有光学活性形式的二亚油酰基磷脂酰胆碱(I),具有良好的收率和高纯度,该方法包括:a)用具有1至4个碳原子的醇将蓖麻油酸(III)的末端羧基酯化至 得到具有式(IV)的相应酯; b)用温和的操作条件下可除去的保护基保护蓖麻油酸(IV)的酯的羟基,并将其中羟基(Ⅴ)的蓖麻油酸酯 保护; c)水解羟基(V)被保护的蓖麻油酸酯,并分离保护羟基(Ⅵ)的蓖麻油酸; d)用咪唑单体酰化L-α-甘油磷脂酰胆碱(II) 或具有式(Ⅵ)的化合物的三唑衍生物,并分离保护羟基(Ⅶ)的二亚油酰基磷脂酰胆碱; e)从羟基中除去保护基 具有式(VII)的化合物的式 最后通过色谱法回收和纯化具有式(I)的化合物。