Subtype selective tetracycline agonists and their application for a two-stage regulatory system
Subtype selective tetracycline agonists and their application for a two-stage regulatory system
复制标题
DOI:
10.1002/cbic.200600226
复制
发表时间:
2006-09-01
期刊:
影响因子:
3.2
通讯作者:
Gmeiner, Peter
中科院分区:
文献类型:
--
作者:
Berens, Christian;Lochner, Susanne;Gmeiner, Peter
General: All reactions were carried out in air unless otherwise indicated. Doxycycline hydrate, tetracycline hydrochloride and tetracycline hydrate for chemical synthesis were aquired from Heumann Pharma, Synopharm GmbH and Fluka, respectively. All chemicals were used as purchased. Doxycycline and anhydrotetrycycline for biological testing were purchased as hydrochlorides from Sigma and Acros Organics (Geel, Belgium), respectively. D-luciferin and coelenterazine were purchased from PJK (Kleinblittersdorf, Germany). 1H and 13C NMR spectra were recorded at 300 K on a Bruker Avance 360 (360 MHz) or a Bruker Avance 600 (600 MHz). LC-MS analyses were performed with an Agilent 1100 HPLC combined with a Bruker Esquire 2000 mass spectrometer. HR-EIMS spectra were recorded on a Jeol GCmateII. Preparative HPLC was performed on an Agilent 1100 system using RP-18 colums (Agilent Zorbax 300SB, 7µm or CS-Chromatographie Eurospher C-18, 7µm) and CH3CN/0.1% aq. TFA or MeOH/0, 1% aq. TFA as solvent systems. MPLC separation was performed on a Büchi Chromatography System (binary pump B-688, gradient former B-687 and glass columns B-685) with UV detection at 254 nm using Europrep 60-30 C18 (Eurochrom®, Knauer) RP silica gel and CH3CN/0.1% aq. TFA as a solvent system. In all cases HPLC grade solvents were used.