This paper describes the design and synthesis of a new type of aminoacyl-adenylate analogue (aa-AMPN) having an N-acyl phosphoramidate linkage where the oxygen atom of the mixed anhydride bond of aminoacyl-adenylate (aa-AMP) is replaced by an amino group. This new type of aa-AMP analogue is expected to be useful as material for studies on the recognition mechanism of the aminoacylation of tRNA and
Synthesis of Oligoribonucleotides by Use of 4,4′,4″-Tris(acyloxy)trityl Groups for Protection of the 6-Amino Group of Adenosine
作者:Mitsuo Sekine、Reiko Iwase、Narihiro Masuda、Tsujiaki Hata
DOI:10.1246/bcsj.61.1669
日期:1988.5
been examined as protecting groups of the amino group of adenosine in oligoribonucleotidesynthesis. The former was used for a 3′-terminal adenosine unit and the latter was introduced into an building block of internal adenosine. These protecting groups were successfully applied to the liquid-phase synthesis of pGUA and pGUAUUA which were the 5′-terminal oligoribonucleotide fragments of brome mosaic
Visible-light-mediated, nitrogen-centered radical amination of tertiary alkyl halides under metal-free conditions to form α-tertiary amines
作者:Alexander C. Brueckner、Erin N. Hancock、Evan J. Anders、Matthew M. Tierney、Heather R. Morgan、Kristina A. Scott、Angus A. Lamar
DOI:10.1039/c6ob00616g
日期:——
A mild and operationally convenient amino-functionalization of a range of tertiary alkyl halides by reaction with iminoiodinanes (PhINNs) and I2 has been developed. According to the mechanistic experiments described within, the reaction is speculated to proceed through a light-promoted, N-centered radical pathway involving a N,N-diiodosulfonamide reactive species. This method of direct N-incorporation
Introduction of the 4,4′4′-tris(benzoyloxy)trityl group into the exo amino groups of deoxyribonucleosides and its properties
作者:Mitsuo Sekine、Narihiro Masuda、Tsujiaki Hata
DOI:10.1016/s0040-4020(01)91344-4
日期:1985.1
The 4,4′,4′-tris(benzoyloxy)trityl (TBTr) group was introduced into the amino groups of the common deoxyribonucleosides by means of the transient protection using the trimethylsilyl group. The TBTr group introduced onto the N6 -amino group of deoxyadenosine was found to have considerable retarding effects on the depurination when treated with acids.
PROCESS FOR PRODUCING CYCLODEXTRIN DERIVATIVE AND POLYMER CONTAINING CYCLODEXTRIN IMMOBILIZED THEREIN
申请人:TOPPAN PRINTING CO. LTD.
公开号:EP0513358A1
公开(公告)日:1992-11-19
A process for producing a polymer containing cyclodextrin immobilized therein, which comprises reacting cyclodextrin with an acyl halide or acid anhydride of a carboxylic acid, a compound represented by any of the formulae (a), (b), (c), (d), (e), or other compound and reacting the obtained cyclodextrin derivative with an acyl halide monomer of an α,β-unsaturated acid or its derivative, or a monomer of anisocyanate-terminated α,β-unsaturated acid or its derivative. In the formulae, X presents Cl, Br or I. The obtained polymer contains one immobilized cyclodextrin derivative unit per monomer and has a high reactivity in the polymer reaction.