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. 发明公开
    • 포스핀 옥사이드 비타민 디 전구체
    • 磷酸氧化铁维生素D前体
    • KR1020010014792A
    • 2001-02-26
    • KR1020000021157
    • 2000-04-21
    • 에프. 호프만-라 로슈 아게
    • 카바트마렉마이클
    • C07C4/00
    • C07F9/532Y02P20/55
    • PURPOSE: Provided is the subject compound useful for efficient vitamin D analog synthesis by chlorinating a specific cyclohexane compound with triphosgene in the presence of an organic base followed by reacting the thus produced compound with a diphenylphosphine oxide salt. CONSTITUTION: This compound of formula II (Ph is a phenyl)(e.g. 3S-(3α;,5β;,Z)-2-2-2-methylene-bis (1, 1-dimethyl-ethyl)dimethyl-silyl-oxy-cyclohexylidene- ethyl-diphenylphosphine oxide) is obtained by chlorinating a compound of formula I (X1 and X2 are both H or CH2 if combined together; R1 is a protective group; R2 is fluorine, H or the like; a wavy line is a bond producing the adjacent double bond representing either E-or Z-steric configuration) with triphosgene in the presence of an organic base such as triethylamine with triphosgene to produce a compound of formula II followed by reacting the thus produced compound with a diphenylphosphine oxide salt.
    • 目的:通过在有机碱的存在下,用三光气氯化特定的环己烷化合物,然后使由此制得的化合物与二苯基氧化膦盐反应,可提供有效的维生素D类似物合成的主题化合物。 构成:式II化合物(Ph为苯基)(例如3S-(3α;5β,Z)-2-2-2-亚甲基 - 双(1,1-二甲基 - 乙基)二甲基 - 甲硅烷基氧基 - 亚环己基 - 乙基 - 二苯基膦氧化物)是通过氯化式I化合物得到的(X1和X2均为H或CH2如果结合在一起; R1是保护基; R2是氟,H等;波浪线是 在三碳
      酸存在下,在三光气存在下,使用三光气存在三光气,产生式II化合物,然后使由此制得的化合物与二苯基
      氧化膦盐反应,得到三光气,表示E-或Z-立体构型的相邻双键)。