Synthesis of symmetrical thiol-adenosine conjugate and 5′ thiol-RNA preparation by efficient one-step transcription
摘要:
A symmetrical transcription initiator containing two adenosines and conjugated thiol functionality (ThioAMP dimer) is chemically synthesized. Transcription in the presence of ThioAMP dimer under the T7 Phi 2.5 promoter yields 5' thiol-labeled RNA (5' HS-RNA) with up to 90% labeling efficiency, depending on the concentration ratio of ThioAMP dimer to ATP. The resulting 5' HS-RNA may be used directly or after thiopropyl Separose 6B affinity column purification. Biotinylation of 5' HS-RNA and formation of gold nanoparticle-RNA nanoplexes are demonstrated. (C) 2010 Elsevier Ltd. All rights reserved.
[EN] CHEMOSELECTIVE THIOL-CONJUGATION WITH ALKENE OR ALKYNE-PHOSPHONAMIDATES<br/>[FR] CONJUGAISON CHIMIOSÉLECTIVE D'UN THIOL AVEC DES ALCÈNE- OU ALCYNE-PHOSPHONAMIDATES
申请人:FORSCHUNGSVERBUND BERLIN EV
公开号:WO2018041985A1
公开(公告)日:2018-03-08
Disclosed are novel conjugates and processes for the preparation thereof. A process for the preparation of alkene- or alkyne-phosphonamidates comprises the steps of (I) reacting a compound of formula (III), with an azide of formula (IV), to prepare a compound of formula (V), reacting a compound of formula (V) with a thiol-containing molecule of formula (VI), resulting in a compound of formula (VII).
[EN] NEW BORANOPHOSPHATE ANALOGUES OF CYCLIC NUCLEOTIDES<br/>[FR] NOUVEAUX ANALOGUES BORANOPHOSPHATES DE NUCLÉOTIDES CYCLIQUES
申请人:BIOLOG LIFE SCIENCE INST FORSCHUNGSLABOR UND BIOCHEMICA VERTRIEB GMBH
公开号:WO2012130829A1
公开(公告)日:2012-10-04
The present invention relates to novel boranophosphate analogues of cyclic nucleotides. The invention further relates to the use of such compounds as reagents for signal transduction research or as modulators of cyclic nucleotide-regulated binding proteins and isoenzymes thereof, and/or as hydrolysis- and oxidation-resistant ligands for affinity chromatography, for antibody production or for diagnostic applications e.g. on chip surfaces and/or as additive for organ transplantation storage solutions.
An objective of the present invention is to provide carbapenem derivatives which have potent antibiotic activity against MRSA, PRSP, Influenzavirus, and &bgr;-lactamase-producing bacteria and are stable against DHP-1. The compounds according to the present invention are compounds represented by formula (I) or pharmaceutically acceptable salts thereof:
1
wherein R
1
represents H or methyl; R
2
and R
3
represent H, a halogen atom, alkyl or the like; and R
4
represents substituted lower alkylthio or the like.
[EN] DYE COMPOSITIONS, METHODS OF PREPARATION, CONJUGATES THEREOF, AND METHODS OF USE<br/>[FR] COMPOSITIONS DE COLORANT, PROCÉDÉS DE PRÉPARATION, CONJUGUÉS ASSOCIÉS, ET PROCÉDÉS D'UTILISATION
申请人:UNIV CORNELL
公开号:WO2013109859A1
公开(公告)日:2013-07-25
Dye compounds of the formula (1) wherein A is a protective agent group that has a characteristic of modifying the singlet-triplet occupancy of the shown cyanine moiety, and M is a reactive crosslinking group or a group that can be converted to a reactive crosslinking group. Methods for synthesizing the dye compounds and applications for their use are also described.
CHEMICAL FILM ON SUBSTRATE AND METHOD OF FORMING THE SAME, METHOD OF FORMING PARACYCLOPHANE CONTAINING FUNCTIONAL GROUND WITH DISULFIDE BOND
申请人:MAY-HWA ENTERPRISE CORPORATION
公开号:US20170166520A1
公开(公告)日:2017-06-15
The present invention provides a method of forming paracyclyophane containing disulfide functional group. The paracyclophane is prepared by adding 3,3′-dithiodipropionic acid (DPDPA) and N-ethyl-N′-(3-(dimethylamino)propyl)carbodiimide (EDC) into 4-aminomethyl [2,2] paracyclophane. The present invention further provides a chemical film and a method of forming the same. The chemical film contains poly-p-xylylene with disulfide functional group and is formed on a substrate by a chemical vapor deposition process.