Boron-Selective Biaryl Coupling Approach to Versatile Dibenzoxaborins and Application to Concise Synthesis of Defucogilvocarcin M
摘要:
An efficient synthetic method for versatile dibenzoxaborins based on boron-selective Suzuki-Miyaura cross-coupling between o-borylphenols and aryl halides or triflates bearing a 1,8-diaminonaphthalene-protected o-boryl group is reported. A short synthesis of defucogilvocarcin M was achieved using the proposed method in combination with several other boron-mediated transformations.
[EN] PYRAZOLOPYRIMIDINE MACROCYCLES AS INHIBITORS OF HUMAN IMMUNODEFICIENCY VIRUS REPLICATION<br/>[FR] MACROCYCLES DE PYRAZOLOPYRIMIDINE UTILES EN TANT QU'INHIBITEURS DE LA RÉPLICATION DU VIRUS DE L'IMMUNODÉFICIENCE HUMAINE
申请人:BRISTOL MYERS SQUIBB CO
公开号:WO2015126376A1
公开(公告)日:2015-08-27
The disclosure generally relates to compounds of formula I, including compositions and methods for treating human immunodeficiency virus (HIV) infection. The disclosure provides novel inhibitors of HIV, pharmaceutical compositions containing such compounds, and methods for using these compounds in the treatment of HIV infection.
[EN] PYRAZOLOPYRIMIDINE MACROCYCLES AS INHIBITORS OF HUMAN IMMUNODEFICIENCY VIRUS REPLICATION<br/>[FR] MACROCYCLES DE PYRAZOLOPYRIMIDINE UTILISÉS EN TANT QU'INHIBITEURS DE LA RÉPLICATION DU VIRUS DE L'IMMUNODÉFICIENCE HUMAINE
申请人:BRISTOL MYERS SQUIBB CO
公开号:WO2015126743A1
公开(公告)日:2015-08-27
The disclosure generally relates to compounds of formula I, including compositions and methods for treating human immunodeficiency virus (HIV) infection. The disclosure provides novel inhibitors of HIV integrase, pharmaceutical compositions containing such compounds, and methods for using these compounds in the treatment of HIV infection.
New 7,8-dihydro-1,6-naphthyridin-5(6h)-one-derivatives as PDE4 inhibitors
申请人:Almirall, S.A.
公开号:EP2380890A1
公开(公告)日:2011-10-26
New 7,8-dihydro-1,6-naphthyridin-5(6H)-one derivatives derivatives having the chemical structure of formula (I) are disclosed; as well as process for their preparation, pharmaceutical compositions comprising them and their use in therapy as inhibitors of the phosphodiesterase IV (PDE4).
dibenzoxaborins to dibenzofurans by deborylative ring contraction was achieved under mild conditions using a copper catalyst. The method showed a broad substrate scope enabling the preparation of various dibenzofurans, including those bearing a functional group. The ready availability of various dibenzoxaborins enhances the utility of this method, as demonstrated by the regiodivergent synthesis of dibenzofurans
Efficient synthesis of o-borylphenols is achieved through the Ru-catalyzed regio- and site-selective sp2 C–H borylation of aryl diphenylphosphinites followed by removal of the phosphorus directing group. A successful application to aryl phosphites enables practical one-pot borylation of phenols, demonstrating high synthetic utility of this protocol.