Curtius Rearrangement of ω-Azido Acid Chlorides: Access to the Corresponding ω-Azido Substituted Amines and Carbamates, Useful Building Blocks for Polyamine Syntheses
Branched non-covalent complexes from carboxylic acids and a tris(tetrahydropyrimidine) base
摘要:
Non-covalent binding of various carboxylic acids to 1,3,5-tris(1,4,5,6-tetrahydropyrimidin-2-yl)benzene 3 produced 3 : 1 complexes with good solubility in various nonpolar organic solvents. The association constant for a model system was measured to be 61700 +/- 11900 M-1 in CD3OD/CDCl3 (97 : 3), indicating the utility of this interaction between an acid and tri-basic heterocyclic amidine 3 for assembling branched complexes. (C) 1999 Elsevier Science Ltd. All rights reserved.
Photohydrate-Mediated Reactions of Uridine, 2′-Deoxyuridine and 2′-Deoxycytidine with Amines at Near Neutral pH
作者:Martin D. Shetlar、Kellie Hom、Vincent J. Venditto
DOI:10.1111/php.12069
日期:2013.7
formed in high yield when uridine (Urd), 2'-deoxyuridine (dUrd), cytidine (Cyd) and 2'-deoxycytidine (dCyd) are irradiated with UVC in aqueous solution. The thermal reactions of the photohydrates of Urd with amines at pH values nearpH 7.5 have been studied using UV spectroscopy, HPLC, mass spectrometry and, in some cases, NMR. It has been found that a number of amines (i.e. ethylenediamine, N,N'-
METHOD OF PRODUCING PYRONE AND PYRIDONE DERIVATIVES
申请人:Sumino Yukihito
公开号:US20120022251A1
公开(公告)日:2012-01-26
The present invention provides a pyrone derivative and a pyridone derivative, which are novel intermediates for synthesizing an anti-influenza drug, a method of producing the same, and a method of using the same.
Synthesis of 6-Aminoalkyldiquino-1,4-thiazines and Their Acyl and Sulfonyl Derivatives
作者:Krystian Pluta、Malgorzata Jelen
DOI:10.3987/com-07-11269
日期:——
primary amines, and 6H-diquino-1,4-thiazine (4) with dialkylaminoalkyl chlorides and phthalimidoalkyl bromides followed by hydrolysis. 6-Aminoalkyldiquinothiazines (11-13) were transformed into acyl and sulfonyl derivatives (15-26). Some of the obtained compounds showed significant anticancer activity.
Synthese von Makrocyclen durch Ringerweiterung von 14gliedrigen cyclischen Imiden
作者:Thomas Koch、Vassil I. Ognyanov、Manfred Hesse
DOI:10.1002/hlca.19920750104
日期:1992.2.5
Synthesis of Macrocyles by Ring Enlargement of 14-Membered Cyclic Imides
通过14元环酰亚胺的环扩大合成大环
Pillar[
<i>n</i>
]MaxQ: A New High Affinity Host Family for Sequestration in Water
作者:Weijian Xue、Peter Y. Zavalij、Lyle Isaacs
DOI:10.1002/anie.202005902
日期:2020.8.3
We report the synthesis, X‐ray crystal structure, and molecular recognition properties of pillar[n ]arene derivative P[6]AS , which we refer to as Pillar[6]MaxQ along with analogues P[5]AS and P[7]AS toward guests 1 –18 . The ultratight binding affinity of P[5]AS and P[6]AS toward quaternary (di)ammonium ions renders them prime candidates for in vitro and in vivo non‐covalent bioconjugation, for imaging
我们报告了柱[ n ]芳烃衍生物P[6]AS的合成、X射线晶体结构和分子识别特性,我们将其与类似物P[5]AS和P[7一起称为Pillar[6]MaxQ ]AS面向客人1 – 18。P[5]AS和P[6]AS对季(二)铵离子的超紧密结合亲和力使其成为体外和体内非共价生物共轭、成像和递送应用以及体内螯合剂的主要候选者。