Anti-tubercular agents. Part 3. Benzothiadiazine as a novel scaffold for anti-Mycobacterium activity
摘要:
In an effort to develop new and more effective therapies to treat tuberculosis, a series of benzothiadiazine 1,1-dioxide derivatives were synthesized and their in vitro activity against Mycobacterium tuberculosis, Mycobacterium avium and Mycobacterium intracellulare was evaluated. One of the compounds, 8c, exhibited potent anti-tubercular activity, particularly for the resistant strains and thus prompted us to investigate its in vivo profile. However, the in vivo testing in a mouse model of tuberculosis infection did not show significant anti-tubercular activity, probably because of its poor bioavailability. (c) 2005 Elsevier Ltd. All rights reserved.
Heteroaryl compounds useful as inhibitors of E1 activating enzymes
申请人:Claiborne F. Christopher
公开号:US20080051404A1
公开(公告)日:2008-02-28
This invention relates to compounds that inhibit E1 activating enzymes, pharmaceutical compositions comprising the compounds, and methods of using the compounds. The compounds are useful for treating disorders, particularly cell proliferation disorders, including cancers, inflammatory and neurodegenerative disorders; and inflammation associated with infection and cachexia.
The present invention relates to a process for the preparation of topiramate, intermediates in this process and a process for the preparation of these intermediates.
HETEROARYL COMPOUNDS USEFUL AS INHIBITORS OF E1 ACTIVATING ENZYMES
申请人:Claiborne Christopher F.
公开号:US20120071482A1
公开(公告)日:2012-03-22
This invention relates to compounds that inhibit E1 activating enzymes, pharmaceutical compositions comprising the compounds, and methods of using the compounds. The compounds are useful for treating disorders, particularly cell proliferation disorders, including cancers, inflammatory and neurodegenerative disorders; and inflammation associated with infection and cachexia.
Catalyst-Controlled, Site-Selective Sulfamoylation of Carbohydrate Derivatives
作者:Daniel J. Gorelik、Julia A. Turner、Mark S. Taylor
DOI:10.1021/acs.orglett.2c01590
日期:2022.7.29
Methods for site-selective sulfamoylation of secondary hydroxyl groups in pyranosides are described. Using a boronic acid catalyst, selective installation of a Boc-protected sulfamoyl group at the equatorial position of cis-diols in manno- and galacto-configured substrates has been achieved. Activation of trans-diol groups in gluco- and galacto-configured substrates is also possible by employing an
Topiramate, an antiepileptic drug, was synthesized with an improved protocol and identified by H-1 NMR, C-13 NMR, H-1-H-1 COSY, HMQC and HMBC spectrum. In parallel, density functional theory (DFT) using B3LYP functional and split-valance 6-311++G** basis set has been used to optimize the structures and conformers of Topiramate. Also experimental and theoretical methods have been used to correlate the dependencies of (1)J and (2)J involving H-1 and C-13 on the C1-C2 (omega) and C1-01 (theta) torsion angles in the glycosidic part of Topiramate. New Karplus equations are proposed to assist in the structural interpretation of these couplings. Importantly, due to the sensitivity of some couplings, most notably (2)J(H1R,H1S), (2)J(C2,H1R) and (2)J(C2,H1S) values depend on both C-C (omega) and C-O (theta) torsion angles. Analyses of experimental coupling constants for protons on the pyranose ring of Topiramate indicate a twist boat structure for Topiramate in solution. In all calculations solvent effects were considered using a polarized continuum model (PCM). (C) 2011 Elsevier Ltd. All rights reserved.