Synthesis of 1,2- and 1,4-amino alcohols from 1,3-dienes via oxazines. Rearrangements of 1,4-amino alcohol derivatives to oxazolines
摘要:
Conjugated dienes were converted to 1,2-oxazines by reaction with an acyl nitroso dienophile. The oxazines were reduced to 1,4-N-acetylamino alcohols, which were rearranged to the corresponding oxazolines upon treatment with methanesulfonyl chloride or anhydride. The oxazolines yielded 1,2-N-acetylamino alcohols upon hydrolysis. Thus either 1,4- or 1,2-N-acetylamino alcohols are available from 1,3-dienes via this methodology. Experimental and spectral data are provided for all new compounds. (C) 2010 Elsevier Ltd. All rights reserved.
Synthesis of 1,2- and 1,4-amino alcohols from 1,3-dienes via oxazines. Rearrangements of 1,4-amino alcohol derivatives to oxazolines
摘要:
Conjugated dienes were converted to 1,2-oxazines by reaction with an acyl nitroso dienophile. The oxazines were reduced to 1,4-N-acetylamino alcohols, which were rearranged to the corresponding oxazolines upon treatment with methanesulfonyl chloride or anhydride. The oxazolines yielded 1,2-N-acetylamino alcohols upon hydrolysis. Thus either 1,4- or 1,2-N-acetylamino alcohols are available from 1,3-dienes via this methodology. Experimental and spectral data are provided for all new compounds. (C) 2010 Elsevier Ltd. All rights reserved.
PROCESS AND COMPOUNDS FOR THE MANUFACTURE OF OSELTAMIVIR AND ANALOGS THEREOF, AND NEW ANTIVIRAL AGENTS
申请人:Hudlicky Tomas
公开号:US20120252890A1
公开(公告)日:2012-10-04
The present application relates to processes for the preparation of intermediates useful in the manufacture of oseltamivir and the H
3
PO
4
salt of oseltamivir, Tamiflu®. The application further relates to novel intermediate and compounds and oseltamivir analogs and to pharmaceutical compositions comprising said analog compounds. The application further relates to a method of using the novel analogs of oseltamivir to treat or prevent influenza.
USE OF NEU1 SIALIDASE INHIBITORS IN THE TREATMENT OF CANCER
申请人:Josefowitz Paul Zachary
公开号:US20150064282A1
公开(公告)日:2015-03-05
Use of Neul sialidase inhibitors for the treatment of cancer as a monotherapy or in combination with known chemotherapeutics. Preferably, Neul sialidase inhibitors are oseltamivir phosphate or 2-deoxy-2,3-dehydro-N-acetylneuraminic acid (DANA) or analogues thereof.
US8716333B2
申请人:——
公开号:US8716333B2
公开(公告)日:2014-05-06
Synthesis of 1,2- and 1,4-amino alcohols from 1,3-dienes via oxazines. Rearrangements of 1,4-amino alcohol derivatives to oxazolines
Conjugated dienes were converted to 1,2-oxazines by reaction with an acyl nitroso dienophile. The oxazines were reduced to 1,4-N-acetylamino alcohols, which were rearranged to the corresponding oxazolines upon treatment with methanesulfonyl chloride or anhydride. The oxazolines yielded 1,2-N-acetylamino alcohols upon hydrolysis. Thus either 1,4- or 1,2-N-acetylamino alcohols are available from 1,3-dienes via this methodology. Experimental and spectral data are provided for all new compounds. (C) 2010 Elsevier Ltd. All rights reserved.