A concise synthesis of (+/-)-cylindricine C and its C(13)-epimer is described. Starting from 1-octyne, cylindricine C and 13-epi-cylindricine C were prepared in 11% and 15% yields, respectively. The synthesis involves the preparation of the central tricyclic moiety via a radical alpha-iodoketone carboazidationibis-reductive amination sequence. Inversion of the stereochemistry at C(13) and C(5) was efficiently achieved on late stage intermediates.
CYCLOALKYLIDENE AND HETEROCYCLOALKYLIDENE INHIBITOR COMPOUNDS
申请人:Melvin, JR. Lawrence S.
公开号:US20100022543A1
公开(公告)日:2010-01-28
The present invention provides a compound of general Formula (I) having histone deacetylase (HDAC) inhibitory activity, a pharmaceutical composition comprising the compound, and a method useful to treat diseases using the compound.
Compounds having the formula
1
are hepatitis C (HCV) polymerase inhibitors. Also disclosed are a composition and method for inhibiting hepatitis C (HCV) polymerase, processes for making the compounds, and synthetic intermediates employed in the processes.
The purpose of the present invention is to provide a novel compound which has an anti-fungal activity on pathogenic fungi including fungi belonging to the genus
Candida
, the genus
Aspergillus
and the genus
Trichophyton
and is useful as a medicinal agent. A compound represented by formula (I) (wherein A
1
represents a nitrogen atom or a group represented by formula CR
6
; A
2
and A
3
are the same as or different from each other and independently represent a nitrogen atom or a group represented by formula CH; R
1
represents an aryl group which may be substituted by 1 to 5 substituents independently selected from a substituent group (2) or the like; R
2
and R
3
are the same as or different from each other and independently represent a hydrogen atom, a halogen atom, a C
1-6
alkyl group, a C
1-6
haloalkyl group or a C
1-6
alkoxy group; and R
4
and R
5
are the same as or different from each other and independently represent a hydrogen atom, a C
1-6
haloalkyl group, a C
1-6
alkyl group or the like) or a salt thereof is useful as an anti-fungal agent.
[EN] PHENOXYPYRIDINYLAMIDE DERIVATIVES AND THEIR USE IN THE TREATMENT OF PDE4 MEDIATED DISEASE STATES<br/>[FR] DÉRIVÉS DE PHÉNOXYPYRIDINYLAMIDE ET LEUR UTILISATION DANS LE TRAITEMENT D'ÉTATS PATHOLOGIQUES INDUITS PAR LA PHOSPHODIÉSTERASE 4 (PDE4)
申请人:ASTRAZENECA AB
公开号:WO2009144494A1
公开(公告)日:2009-12-03
The present invention provides a compound of a formula (I), wherein the variables are defined herein; to a process for preparing such a compound; and to the use of such a compound in the treatment of a PDE4 mediated disease state.
Palladium-Catalyzed Benzylation of Heterocyclic Aromatic Compounds
作者:David Lapointe、Keith Fagnou
DOI:10.1021/ol901689q
日期:2009.9.17
Broadly applicable palladium-catalyzed heteroarene benzylation reactions are described with a focus on the most challenging heterocyclic classes under traditional benzylation techniques such as sulfur-containing heterocycles and those bearing functional groups that would be incompatible with reactions requiring Lewis acids and/or strong bases.