发明授权
US08344139B2 Process for preparing crystalline polymorphic forms of (6R)-L-erythro-tetrahydrobiopterin dihydrochloride 有权
制备(6R)-L-赤型 - 四氢生物喋呤二盐酸盐的结晶多晶形式的方法

Process for preparing crystalline polymorphic forms of (6R)-L-erythro-tetrahydrobiopterin dihydrochloride
摘要:
Crystal forms of (6R)-L-erythro-tetrahydrobiopterin dihydrochloride, hydrates and solvates and processes for their preparation are provided. These crystal forms are either intermediates for the preparation of stable polymorphic form B or are suitable for solid formulations.
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