Oxa-Michael addition promoted by the aqueous sodium carbonate
摘要:
An efficient Michael addition of alcohols to activated alkenes promoted by sodium carbonate with water as reaction medium has been developed. The reaction provides a general, economical and environmentally friendly approach for the synthesis of beta-alkoxycarbonyl compounds. (C) 2014 Elsevier Ltd. All rights reserved.
The present disclosure provides a cross-linked material comprising conjugates which include two or more separate affinity ligands bound to a non-polymeric framework, wherein the molecular weight of the non-polymeric framework is less than 10,000 Da; and multivalent cross-linking agents that non-covalently bind the affinity ligands of the conjugates and thereby cross-link the conjugates to form a cross-linked material, wherein the non-covalent bonds between the multivalent cross-linking agents and the affinity ligands are competitively dissociated in the presence of excess amounts of a target molecule. The present disclosure also provides methods of making and methods of using these materials. In other aspects, the present disclosure provides exemplary conjugates including conjugates for use in glucose responsive cross-linked materials.
The present disclosure provides crystalline insulin-conjugates. The present disclosure also provides formulations, methods of treatment, methods of administering, and methods of making that encompass these crystalline insulin-conjugates.
EXOGENOUSLY TRIGGERED CONTROLLED RELEASE MATERIALS AND USES THEREOF
申请人:Zion Todd C.
公开号:US20120046223A1
公开(公告)日:2012-02-23
The disclosure provides cross-linked materials that include multivalent cross-linking agents that bind an exogenous target molecule; and conjugates that include two or more separate affinity ligands bound to a conjugate framework, where in the two or more affinity ligands compete with the exogenous target molecule for binding with the cross-linking a agents and wherein conjugates are cross-linked within the material as a result of non-covalent interact ions between cross-linking agents and affinity ligands on different conjugates. The conjugates also include a drug.
Provided herein are water-soluble polymer conjugates of topotecan, along with compositions comprising the conjugates and related methods of making and using the same.