1-Azabicyclo[1.1.0]butane (ABB, 1) reacted with 3-acyl-1,3-thiazolidine-2-thiones (7,11a-m) in the presence of a catalytic amount of Mg(OTf)(2) to give the corresponding 2-(1-acylazetidin-3-yl)thio-1,3-thiazolines (8,12a-m). It was hypothesized that this reaction is primarily influenced by a steric bulkiness of acyl groups in 3-acyl-1,3-thiazolidine-2-thiones. Resulting compounds (8, 12k) were readily converted to thiols (13,14), and azetidine-3-thiol hydrochloride (15), which is the key intermediate of 1-(1,3-thiazolin-2-yl)azetidine-3-thiol hydrochloride (4) useful for the preparation of a new oral 1 beta-methylcarbapenem antibiotic L-084, was obtained quantitatively by hydrolysis of 14.
SYNEPHRINE DERIVATIVES USEFUL AS ANTI-INFLAMMATORY AGENTS
申请人:Universiteit Gent
公开号:EP1963255A1
公开(公告)日:2008-09-03
Synephrine derivatives useful as anti-inflammatory agents
申请人:BERGHE Wim VANDEN
公开号:US20090029999A1
公开(公告)日:2009-01-29
This invention provides compounds having the structural formula:
wherein:
R
1
is an acyl or sulfonyl group,
R
2
is an acyl group selected from the group consisting of acyl groups derived from cycloaliphatic, aromatic or heterocyclic monocarboxylic acids, imidazolylcarbonyl and triazolylcarbonyl, and
R
3
is hydrogen or an amino-protecting group,
a stereoisomer thereof, a solvate thereof, or a salt thereof, being useful as anti-inflammatory agents and anti-cancer agents.
US8039501B2
申请人:——
公开号:US8039501B2
公开(公告)日:2011-10-18
[EN] SYNEPHRINE DERIVATIVES USEFUL AS ANTI-INFLAMMATORY AGENTS<br/>[FR] DÉRIVÉS DE SYNÉPHRINE EN TANT QU'AGENTS ANTI-INFLAMMATOIRES
申请人:UNIV GENT
公开号:WO2007071452A1
公开(公告)日:2007-06-28
[EN] This invention provides compounds having the structural formula: wherein:- R1 is an acyl or sulfonyl group, - R2 is an acyl group selected from the group consisting of acyl groups derived from cycloaliphatic, aromatic or heterocyclic monocarboxylic acids, imidazolylcarbonyl and triazolylcarbonyl, and - R3 is hydrogen or an amino-protecting group, a stereoisomer thereof, a solvate thereof, or a salt thereof, being useful as anti-inflammatory agents. [FR] La présente invention concerne des composés de formule structurelle : où :- R1 représente un groupement acyle ou sulfonyle, - R2 représente un groupement acyle sélectionné au sein du groupe constitué des groupements acyle dérivés d'acides monocarboxyliques cycloaliphatiques, aromatiques ou hétérocycliques, un groupement imidazolylcarbonyle ou un groupement triazolylcarbonyle, et - R3 représente un atome d'hydrogène ou un groupement protecteur de fonction amine, un stéréoisomère desdits composés, un solvate desdits composés ou un sel desdits composés, pouvant être employés en tant qu'agents anti-inflammatoires.