- 相似结构搜索
- InChIKey: DWVDTGFCPCXUJS-NRMKKVEVSA-N
- 1S/C17H18N4O7/c1-8(13-12(9(2)22)16(24)19-13)15(23)14(20-18)17(25)28-7-10-3-5-11(6-4-10)21(26)27/h3-6,8-9,12-13,22H,7H2,1-2H3,(H,19,24)/t8-,9-,12-,13-/m1/s1
- 计算化学: 氢键受体数8.0氢键供体数2.0可旋转键数7.0
海关参考信息
- 2902300000-甲苯
2905122000-异丙醇
2906210000-苄醇
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专利信息
专利号:US-8093378-B2
优先权日:2006-04-28
标题 :Crystallization method for intermediates of carbapenem antibiotics
发明人:NISHINO KEITA; KOGA TERUYOSHI; FUKAE MASAFUMI; UEDA YASUYOSHI
权利人:NISHINO KEITA; KOGA TERUYOSHI; FUKAE MASAFUMI; UEDA YASUYOSHI; KANEKA CORP
摘要:An improved crystallization method for an azetidinone compound represented by the formula 1: , which is extremely useful as a common intermediate for the synthesis of 1β-methylcarbapenem compounds. The present method provides crystals having higher quality and stability than conventional crystals and excellent filterability at the time of recovery; and an azetidinone compound having a low content of impurity, and which has a controlled particle size distribution of crystals and improved handleability and stability. The crystallization is carried out by adding a hydrocarbon solvent to a solution in which an azetidinone compound extremely useful as a common intermediate for the synthesis of 1β-methylcarbapenem compounds is dissolved in the presence of a seed crystal in an amount of 200% by weight or less based on the weight of the azetidinone compound.