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    • 1. 发明专利
    • Thiopyranopyrimidine derivative and its acid addition salt
    • 三硝基吡啶衍生物及其酸添加盐
    • JPS59141583A
    • 1984-08-14
    • JP1509783
    • 1983-02-01
    • Maruko Seiyaku Kk
    • OONO SACHIOMIZUKOSHI SEISHIKOMATSU OSAMUYAMAMOTO HAJIMEKUNOU YASUO
    • C07D495/04A61K31/505A61P3/08A61P3/10
    • NEW MATERIAL:The thiopyranopyrimidine derivative of formula I (R
      1 is amino, hydroxyethylamino, piperazino, etc.; R
      2 is amino, dimethylamino, morpholino, etc.).
      EXAMPLE: 2-Amino-4-piperazino-7,8-dihydro-6H-thiopyrano[ 3,2-d ]-pyrimidine dimaleate.
      USE: Remedy for diabetes.
      PREPARATION: The compound of formula I wherein R
      2 is NH
      2 can be prepared by reacting 2-amino-4-chloro-7,8-dihydro-6H-thiopyrano[3,2-d]-pyrimidine of formula II (novel substance) with excessive amount of corresponding amine (e.g. ammonia, methylamine, etc.) in the absence or presence of a solvent such as dichloromethane at 0W100°C for 0.5W10hr. The starting compound of formula IIcan be obtained by reacting the compound of formula III with guanidine carbonate in the presence of a base, and reacting the resultant novel compound of formula IV with phosphorus oxychloride in the presence of N,N-dimethylaniline, etc.
      COPYRIGHT: (C)1984,JPO&Japio
    • 新材料:式I的噻喃并嘧啶衍生物(R 1是氨基,羟乙基氨基,哌嗪基等; R 2是氨基,二甲基氨基,吗啉代等)。 实施例:2-氨基-4-哌嗪基-7,8-二氢-6H-噻喃并[3,2-d] - 嘧啶二马来酸盐。 用途:糖尿病补救。 制备:其中R 2是NH 2的式I化合物可以通过使式II的2-氨基-4-氯-7,8-二氢-6H-噻喃并[3,2-d] - 嘧啶(新颖的 物质)与过量的相应的胺(如氨,甲胺等)在0-100℃的溶剂(如二氯甲烷)存在或不存在下反应0.5-10小时。 式II的起始化合物可以通过在碱的存在下使式III化合物与碳酸胍反应而得到,并在N,N-二甲基苯胺等的存在下,使得到的式Ⅳ的新化合物与磷酰氯反应。