[EN] NOVEL PHOSPHOROUS (V)-BASED REAGENTS, PROCESSES FOR THE PREPARATION THEREOF, AND THEIR USE IN MAKING STEREO-DEFINED ORGANOPHOSHOROUS (V) COMPOUNDS<br/>[FR] NOUVEAUX RÉACTIFS À BASE DE PHOSPHORE (V), LEURS PROCÉDÉS DE PRÉPARATION ET LEUR UTILISATION DANS LA FABRICATION DE COMPOSÉS ORGANOPHOSHOREUX (V) STÉRÉODÉFINIS
申请人:BRISTOL MYERS SQUIBB CO
公开号:WO2019200273A1
公开(公告)日:2019-10-17
The present invention relates to novel phosphorous (V) (P(V)) reagents, methods for preparing thereof, and methods for preparing organophosphorous (V) compounds by using the novel reagents.
Addressing regio- and stereo-specificity challenges in the synthesis of nucleoside 2′,3′-cyclic monophosphate analogs – a rapid and facile synthesis of nucleoside-2′,3′-<i>O</i>,<i>O</i>-phosphoro-thioate or -selenoate, and elucidation of the origin of the rare specificity
作者:Molhm Nassir、Lara Balaom、Bilha Fischer
DOI:10.1039/d0cc02886j
日期:——
A new facile, rapid, stereo- and regio-selective one-pot synthesis of nucleoside-2′,3′-O,O-phosphorothioate and selenoate analogs has been developed. This method avoids the need for protection strategies and chiral reagents, chiral metal catalysts, or chiral separations. This synthetic method has been applied to all natural nucleosides (U/A/G/C/T). Furthermore, we have deciphered the origin of the
已经开发了一种新的简便,快速,立体和区域选择性的核苷2',3'- O,O-硫代磷酸酯和硒酸酯类似物的一锅合成方法。该方法避免了保护策略和手性试剂,手性金属催化剂或手性分离的需要。该合成方法已应用于所有天然核苷(U / A / G / C / T)。此外,我们已经破译了反应的立体选择性和区域选择性的起源。
Boat-shaped Co6 carbonyl cluster derivatives containing a semi-interstitial P atom and bridging thiolate or heterocyclic phosphido ligands
Reactions of MeSPCl2, EtSPCl2 and Cl[graphic omitted], respectively with Co2(CO)8 in the presence of zinc powder give the Co6 clusters [Co6(µ6-P)(µ-SMe)3(CO)12]1, [Co6(µ6-P)(µ-SEt)3(CO)12]2 and [Co6(µ6-P)(µ4-SCH2CH2S)(µ-µ-[graphic omitted])(CO)12]3 respectively; in 1 six Co atoms form a boat-shaped array consisting of a basal square of four cobalt atoms with two opposite edges bridged by two apical Co atoms, with the metal arrangement surrounding a semi-interstitial P atom, and with two µ-SMe ligands bridging underneath the basal square and another bridging µ-SMe side-linked to the basal square.
Synthesis and Solid-State Study of Supramolecular Host−Guest Assemblies: Bis[6-<i>O</i>,6-<i>O</i>′-(1,2:3,4-diisopropylidene-α-<scp>d</scp>-galactopyranosyl)thiophosphoryl] Dichalcogenides
作者:Marek J. Potrzebowski、Wojciech M. Potrzebowski、Agata Jeziorna、Wlodzimierz Ciesielski、Jarosław Gajda、Grzegorz D. Bujacz、Maksymilian Chruszcz、Wladek Minor
DOI:10.1021/jo8002997
日期:2008.6.1
for studying structural details of complex solid materials formed by symmetrical and unsymmetrical dichalcogenides, which employs both X-ray diffraction (XRD) and solid-state NMR (SS NMR), is presented. The new diagnostic technique allows reversible crystallographic space group change and very subtle distortion of host geometry to be followed during guest migration in the crystal lattice. Bis[6-O,6-O′-(1
提出了一种补充方法,用于研究由对称和不对称二硫代双氰化物形成的复杂固体材料的结构细节,该方法同时使用X射线衍射(XRD)和固态NMR(SS NMR)。新的诊断技术允许在晶格中的客体迁移过程中,可逆的晶体空间群变化和主体几何形状的非常细微的变形得以遵循。可以合成双[6- O,6- O '-(1,2:3,4-二异亚丙基-α - d-吡喃半乳糖基)]硫代磷酰基亚硒基硫化物,它是轮轴主体(WAAH)分子的代表通过研磨和缓慢加热二硫化物1和二硒化物2而形成固态。二硫化物的全面表征1在固相中已经报道(有机化学杂志。 1995年,60,2549)。在当前的工作中,介绍了同结构二硒化物底物2的合成以及XRD和SS NMR研究。采用31 P交叉极化魔角旋转实验跟踪硒硒烯3的合成进展在固态。结论是,在液体和粉末状固体中,硒烯基硫化物与二硫化物和二硒化物以1:1:1的比例平衡存在。从不同溶剂中结晶出来的同构二卤
Inhibition of ADP-triggered blood platelet aggregation by diadenosine polyphosphate analogues
作者:Bogdan Walkowiak、Janina Baraniak、Czeslaw S. Cierniewski、Wojciech Stec
DOI:10.1016/s0960-894x(02)00318-9
日期:2002.8
The synthesis and biological evaluation of new diadenosine polyphosphateanalogues on blood platelet aggregation are reported. The most active are compounds with a sulfur atom replacing one or both non-bridging oxygens at phosphorus bound to adenosyl residues and hydroxymethyl groups of bis(hydroxymethyl)phosphinic acid.