Synthesis of Tricyclic Heterocycles via a Tandem Aryl Alkylation/Heck Coupling Sequence
摘要:
A norbornene-mediated palladium-catalyzed sequence is described in which two alkyl-aryl bonds and one alkenyl-aryl bond are formed in one pot with use of microwave irradiation. A variety of symmetrical and unsymmetrical oxygen-, nitrogen-, silicon-, and sulfur-containing tricyclic heterocycles were synthesized from a Heck acceptor and an aryl iodide containing two tethered alkyl halides. This approach was further applied to the synthesis of a tricyclic mescaline analogue.
[EN] URACIL OR THYMINE DERIVATIVE FOR TREATING HEPATITIS C<br/>[FR] DÉRIVÉ D'URACILE OU DE THYMINE POUR LE TRAITEMENT DE L'HÉPATITE C
申请人:ABBOTT LAB
公开号:WO2009039127A1
公开(公告)日:2009-03-26
Present application relates to the compounds of formula I useful to treat hepatitis C (HCV) infections. In the structure of the disclosed compounds is the uracil or thymine derivative linked via a phenylene into either fused 2-ring cyclic system (R6) or alternatively via additional two-atom linker (L) to a 5-6 membered monocycle (R6). Application further discloses polymorphs and pseudopolymorphs of two specific compounds: N-(6(3-t-butyl-5-(2>4-dioxo-3,4-dihydropyrimidin-1 (2H)- y!)2-methoxy-phenyl)naphthalen-2-yl)methanesulfonamide and (E)-N-(4(3-t- butyl-5-(2,4-dioxo-3)4-dihydropyrimidin-1 (2H)-yl)2-methoxy-styryl- phenyl)methanesulfonamide.
[EN] N-PHENYL-DIOXO-HYDROPYRIMIDINES USEFUL AS HEPATITIS C VIRUS (HCV) INHIBITORS<br/>[FR] N-PHÉNYL-DIOXO-HYDROPYRIMIDINES UTILES EN TANT QU'INHIBITEURS DU VIRUS DE L'HÉPATITE C (VHC)
申请人:ABBOTT LAB
公开号:WO2009039135A1
公开(公告)日:2009-03-26
This invention relates to: (a) compounds and salts thereof that, inter alia, inhibit HCV; (b) intermediates useful for the preparation of such compounds and salts; (c) compositions comprising such compounds and salts; (d) methods for preparing such intermediates, compounds, salts, and compositions; (e) methods of use of such compounds, salts, and compositions; and (f) kits comprising such compounds, salts, and compositions. The compounds are usefull in the treatment of hepatitis C and are of the following general structure: Formula (I)
Regioselective I/Zn-exchange reactions were performed on polyiodinated arenes or heterocycles within 20 minutes at 0–25 °C using the bimetallic combination pTol2Zn·2LiOR [R = (CH2)2N(Me)(CH2)2NMe2] in toluene. The resulting diaryl- or diheteroarylzincs reacted well with allylic bromides and acyl chlorides to provide functionalized (hetero)aryl iodides in good yields.
A norbornene-mediated palladium-catalyzed tandem alkylation/cyanation sequence is described in which an alkyl-aryl bond and a nitrile-aryl bond are formed in one pot. A variety of sterically hindered, five-, six-, and seven-membered ring benzonitriles were synthesized in good yields from easily accessible starting materials.
Elaboration of the side-chain of amino acid derivatives by palladium catalysed couplings
作者:Geoffrey T. Crisp、Yu-Lin Jiang、Peter J. Pullman、Chris De Savi
DOI:10.1016/s0040-4020(97)10197-1
日期:1997.12
The palladium-catalysed couplings of aryl halides and triflates with propargyl amino amides and the couplings of aryl and vinyl halides and triflates with an ethynyl oxazolidine are reported.