TETRAZINE-BASED BIO-ORTHOGONAL COUPLING REAGENTS AND METHODS
申请人:Fox Joseph Michael
公开号:US20090023916A1
公开(公告)日:2009-01-22
Coupling reactions, suitable for use in organic or aqueous media, are performed by contacting a 1,2,4,5-tetrazine with a dienophile. The dienophile may be covalently bonded to a protein, and the coupling reaction may be performed in biological media such as those containing cells or cell lysates. The reactions may be performed in the presence of primary amines, thiols, acetylenes, azides, phosphines, and products of Staudinger and/or Sharpless-Huisgen reactions Novel 3-substituted cyclopropene compounds and trans-cyclooctenes are exemplary dienophiles for these reactions.
Cycloheptynes and cyclooctynes have been efficiently generated via a sulfoxide–magnesium exchange reaction of readily synthesized 2-sulfinylcycloalkenyl triflates.
环庚烯和环庚炔已通过易于合成的2-磺酰基环烯基三氟甲磺酸酯的亚砜-镁交换反应高效生成。
Study and application of noncatalyzed photoinduced conjugation of azides and cycloocta-1,2,3-selenadiazoles
The non-catalyzed cycloaddition of eight structurally different azides with cyclooctyne generated in situ by the photolysis of cycloocta-1,2,3-selenadiazole gives 1,2,3-triazole derivatives as the main products.
The strain‐promoted azide alkyne cycloaddition (SPAAC) is a powerful tool for forming covalent bonds between molecules even under physiological conditions, and therefore found broad application in fields ranging from biological chemistry and biomedical research to materials sciences. For many applications, knowledge about reaction kinetics of these ligations is of utmost importance. Kinetics are commonly