| 发明名称 |
NEW CRYSTAL FORM OF 5-HYDROXY-1-METHYLHYDANTOIN |
| 摘要 |
PROBLEM TO BE SOLVED: To provide a 5-hydroxy-2-methylhydantoin having type-II crystal form suitable for forming a drug preparation and essentially free from residual organic solvent. SOLUTION: 5-Hydroxy-1-methylhydantoin recrystallized from water has a new crystal form essentially free from residual organic solvent. COPYRIGHT: (C)2004,JPO
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| 申请公布号 |
JP2004002376(A) |
申请公布日期 |
2004.01.08 |
| 申请号 |
JP20030105721 |
申请日期 |
2003.04.09 |
| 申请人 |
NIPPON ZOKI PHARMACEUT CO LTD |
发明人 |
OKAMOTO KAORU;NISHIMURA NAOHARU;ISHII AKIRA |
| 分类号 |
C07D233/66;A61K31/4166;A61P13/12;C07D233/72;(IPC1-7):C07D233/66;A61K31/416 |
主分类号 |
C07D233/66 |
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