CAS: 1320-51-0; Urea, N-(Hydroxyethyl)-

专利信息

专利号:US-7189864-B2
优先权日:1990-11-19
标 题:Method of preparing intermediates useful in synthesis of retroviral protease inhibitors
发明人：NG JOHN S; PRZYBYLA CLAIRE A; MUELLER RICHARD A; VAZQUEZ MICHAEL L; GETMAN DANIEL P
权利人:SEARLE & CO
摘要:A synthesis is described for intermediates which are readily amenable to the large scale preparation of hydroxyethylurea-based chiral HIV protease inhibitors. The method includes forming a diastereoselective epoxide from a chiral alpha amino aldehyde.

专利号:US-6022996-A
优先权日:1990-11-19
标 题 :Method for making intermediates useful in synthesis of retroviral protease inhibitors
发明人：NG JOHN S; PRZYBYLA CLAIRE A; MUELLER RICHARD A; VAZQUEZ MICHAEL L; GETMAN DANIEL P
权利人:SEARLE & CO
摘要:A synthesis is described for intermediates which are readily amenable to the large scale preparation of hydroxyethylurea-based chiral HIV protease inhibitors. The method includes forming a diastereoselective epoxide from a chiral alpha amino aldehyde.

专利号:EP-0641333-B1
优先权日:1992-05-20
标 题 :Method for making intermediates useful in synthesis of retroviral protease inhibitors
发明人：NG JOHN S; PRZYBYLA CLAIRE A; MUELLER RICHARD A; VAZQUEZ MICHAEL L; GETMAN DANIEL P
权利人:SEARLE & CO; MONSANTO CO
摘要:A synthesis is described for intermediates which are readily amenable to the large scale preparation of hydroxyethylurea-based chiral HIV protease inhibitors. The method includes forming a diastereoselective epoxide compound of formula (I) from a chiral alpha amino aldehyde and halomethyllithium as an organometallic methylene-adding reagent. In formula (I) R<1> is selected from alkyl, aryl, cycloalkyl, cycloalkylalkyl and arylalkyl, which are optionally substituted with a group selected from alkyl, halogen, NO2, OR<9> or SR<9>, where R<9> represents hydrogen or alkyl; and P<1> and P<2> independently are selected from amine protecting groups, including but not limited to, arylalkyl, substituted arylalkyl, cycloalkenylalkyl and substituted cycloalkenylalkyl, allyl, substituted allyl, acyl, alkoxycarbonyl, aralkoxycarbonyl and silyl.

专利号:EP-0855388-B1
优先权日:1993-11-23
标 题 :Method for making intermediates useful in synthesis of retroviral protease inhibitors
发明人：NG JOHN S; PRZYBYLA CLAIRE A; MUELLER RICHARD A; VAZQUEZ MICHAEL L; GETMAN DANIEL P; FRESKOS JOHN J; DECRESCENZO GARY A; BERTENSHAW DEBORAH E; HEINTZ ROBERT M; ZHANG SUHONG; LIU CHIN; LANEMAN SCOTT A
权利人:SEARLE & CO
摘要:A synthesis is described for intermediates which are readily amenable to the large scale preparation of hydroxyethylurea-based chiral HIV protease inhibitors. The method includes forming a cyanohydrin from a chiral alpha amino aldehyde.

专利号:CN-103497215-B
优先权日:2007-12-18
标题 :Reagents and methods for the synthesis of beta-ketoamide as a precursor to the synthesis of immune adjuvant E6020

专利号:CN-102149675-A
优先权日:2007-12-18
标题:Reagents and methods for the synthesis of beta-ketoamide as a precursor to the synthesis of immune adjuvant E6020