Hemoglobin bis-tetramers via cooperative azide–alkyne coupling
作者:Jonathan S. Foot、Francine E. Lui、Ronald Kluger
DOI:10.1039/b918860f
日期:——
Cross-linked hemoglobin-azides react with a bis-alkyne to form a bis-tetramer through sequential âclickâ reactions where the second step is promoted by the first.
交联的血红蛋白-叠氮化物与双炔发生反应,通过连续的“点击”反应形成双聚体,其中第二步由第一步促进。
Engineering of carbon based nanomaterials by ring-opening reactions of a reactive azlactone graphene platform
作者:G. Neri、A. Scala、F. Barreca、E. Fazio、P. G. Mineo、A. Mazzaglia、G. Grassi、A. Piperno
DOI:10.1039/c5cc00518c
日期:——
An efficient approach to functionalize graphene-based materials with primary amines using azlactones grafted on graphene surfaces is reported.
报道了一种高效的方法,利用在石墨烯表面接枝的偶氮内酯将基本胺功能化石墨烯材料。
(Hexafluoroacetylacetonato)copper(<scp>i</scp>)–cycloalkyne complexes as protected cycloalkynes
for cycloalkynes by the formation of (hexafluoroacetylacetonato)copper(I)–cycloalkyne complexes is disclosed. Various complexes having functional groups were efficiently prepared, which are easily purified by silica-gel column chromatography. Selective click reactions were realized through the complexation of cycloalkynes with copper.
Antibacterial agents, and 4-thio azetidinone intermediates
申请人:Bristol-Myers Company
公开号:US04272437A1
公开(公告)日:1981-06-09
This invention relates to 2-substituted and 2,6-disubstituted penem compounds of the formula ##STR1## wherein Y is hydrogen, halo or certain organic substituents and X represents certain organic substituents. Also included in the invention are pharmaceutically acceptable salts of the above compounds and derivatives of the above compounds in which the carboxyl group at the 3-position is protected as by an easily removable ester protecting group. The compounds of the present invention are potent antibacterial agents or are of use as intermediates in the preparation of such agents.
Antibacterial agents and metal containing azetidinone intermediates
申请人:Bristol Myers Company
公开号:US04378314A1
公开(公告)日:1983-03-29
This invention relates to 2-substituted and 2,6-disubstituted penem compounds of the formula ##STR1## wherein Y is hydrogen, halo or certain organic substituents and X represents certain organic substituents. Also included in the invention are pharmaceutically acceptable salts of the above compounds and derivatives of the above compounds in which the carboxyl group at the 3-position is protected as by an easily removable ester protecting group. The compounds of the present invention are potent antibacterial agents or are of use as intermediates in the preparation of such agents.