发明名称 |
PROCESS FOR MAKING A CYCLODEXTRIN |
摘要 |
Sulfoalkyl ether cyclodextrins are produced by a process of treating an unsubstituted cyclodextrin starting material with an alkyl sultone in the pr esence of a base. The base is added in a stepwise, pH controlled manner so that substant ially the entire initial charge of cyclodextrin starting material is at least part ially reacted. Additional base is then added to complete the reaction, and residual alkyl s ultone is destroyed. The product advantageously contains low levels of both residual cyclodextrin and residual alkyl sultone.
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申请公布号 |
CA2241774(C) |
申请公布日期 |
2002.06.25 |
申请号 |
CA19982241774 |
申请日期 |
1998.06.29 |
申请人 |
PFIZER PRODUCTS INC., |
发明人 |
SKLAVOUNOS, CONSTANTINE;SHAH, BHARAT KIRITKUMAR |
分类号 |
C08B37/16;(IPC1-7):C08B37/16 |
主分类号 |
C08B37/16 |
代理机构 |
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