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    • 2. 发明授权
    • Preparation process of (6R)-tetrahydro-L-biopterin
    • (6R) - 四氢-L-生物蝶呤的制备方法
    • US4713454A
    • 1987-12-15
    • US824288
    • 1986-01-23
    • Hideaki SakaiTadashi Kanai
    • Hideaki SakaiTadashi Kanai
    • C07D475/04
    • C07D475/04
    • (6R)-Tetrahydro-L-biopterin of the following formula: ##STR1## is prepared by catalytically reducing L-erythrobiopterin or an acyl derivative thereof in the presence of an amine, at pH 10-13 and with a platinum-base catalyst and when one or more acyl groups still remain, then removing the acyl groups. (6R)-Tetrahydro-L-biopterin is effective for the treatment of certain serious neuroses and malignant hyperphenylalaniemia. The present invention has succeeded in preparing (6R)-tetrahydro-L-biopterin at a high asymmetric ration R/S and moreover with a high yield. Since the process of this invention makes use of an amine as a base, the process is free from admixture of any inorganic salt and can hence provide high-purity crystals with ease.
    • (6R) - 四氢-L-生物蝶呤:通过在pH 10-13的胺存在下和用铂 - 碱催化剂催化还原L-赤藓素激素或其酰基衍生物来制备 当一个或多个酰基仍然残留时,然后除去酰基。 (6R) - 四氢-L-生物蝶呤对于治疗某些严重的神经元和恶性高苯乙胺血症是有效的。 本发明成功地以高不对称比R / S制备(6R) - 四氢-L-生物蝶呤,此外以高产率制备。 由于本发明的方法利用胺作为碱,所以该方法不含任何无机盐的混合物,因此可以容易地提供高纯度的晶体。