A Safe and Facile Route to Imidazole-1-sulfonyl Azide as a Diazotransfer Reagent
作者:Hui Ye、Ruihua Liu、Dongmei Li、Yonghui Liu、Haixin Yuan、Weikang Guo、Lifei Zhou、Xuefeng Cao、Hongqi Tian、Jie Shen、Peng George Wang
DOI:10.1021/ol3028708
日期:2013.1.4
A facile approach to the diazotransferreagent of imidazole-1-sulfonylazide was reported. The procedure was well optimized to clarify potential explosion risks. A high production yield as well as small batch variation was achieved even without careful pretreatment of reagents and solvents. HPLC and NMR methods to monitor the process were provided. These features made this protocol suitable for large
Disclosed are derivatives of amphotericin B (AmB) characterized by improved therapeutic index compared to AmB. The AmB derivatives include C16 ureas, carbamates, and amides according to Formula (I); C3′-substituted C16 ureas, carbamates, and amides according to Formula (II); C16 acyls according to Formula (III); C2′epi-C16 ureas, carbamates, and amides according to Formula (IV); and C16 oxazolidinone derivatives according to Formula (V). Also disclosed are pharmaceutical compositions comprising the AmB derivatives, and therapeutic methods of using the AmB derivatives.
An Efficient, Inexpensive, and Shelf-Stable Diazotransfer Reagent: Imidazole-1-sulfonyl Azide Hydrochloride
作者:Ethan D. Goddard-Borger、Robert V. Stick
DOI:10.1021/ol701581g
日期:2007.9.1
The design and synthesis of a new diazotransfer reagent, imidazole-1-sulfonyl azide hydrochloride, are reported. This reagent has proven to equal triflyl azide in its ability to act as a "diazo donor" in the conversion of both primary amines into azides and activated methylene substrates into diazo compounds. Crucially, this reagent can be prepared in a one-pot reaction on a large scale from inexpensive
Sensitivities of Some Imidazole-1-sulfonyl Azide Salts
作者:Niko Fischer、Ethan D. Goddard-Borger、Robert Greiner、Thomas M. Klapötke、Brian W. Skelton、Jörg Stierstorfer
DOI:10.1021/jo202264r
日期:2012.2.17
Imidazole-1-sulfonylazidehydrochloride, an inexpensive and effective diazotransferreagent, was recently found to be impact sensitive. To identify safer-to-handle forms of this reagent, several different salts of imidazole-1-sulfonylazide were prepared, and their sensitivity to heat, impact, friction, and electrostatic discharge was quantitatively determined. A number of these salts exhibited improved
[EN] HETEROAROMATIC DERIVATIVES AND PHARMACEUTICAL APPLICATIONS THEREOF<br/>[FR] DÉRIVÉS HÉTÉROAROMATIQUES ET LEURS APPLICATIONS PHARMACEUTIQUES
申请人:SUNSHINE LAKE PHARMA CO LTD
公开号:WO2015161830A1
公开(公告)日:2015-10-29
Provided herein are novel heteroaromatic derivatives, or a stereoisomer, a geometric isomer, a tautomer, an N-oxide, a hydrate, a solvate, a prodrug, a pharmaceutically acceptable salt or a prodrug thereof, and pharmaceutical compositions containing such compounds. Also provided herein are uses of such compounds or pharmaceutical compositions thereof in the manufacture of a medicament for treating respiratory diseases, especially chronic obstructive pulmonary disease (COPD).