摘要:
B/N Lewis pairs have been discovered to catalyze rapid epimerization of meso-lactide (LA) or LA diastereomers quantitatively into rac-LA. The obtained rac-LA can be kinetically polymerized into poly(L-lactide) and optically resolved D-LA, with a high stereoselectivity factor kL/kD of 53 and an ee value of 91% at 50.6% monomer conversion, by a bifunctional chiral catalyst. The epimerization and enantioselective polymerization can be coupled into a one-pot process for transforming meso-LA directly into poly(L-lactide) and D-LA.
摘要:
Inhibitors of HCV replication of formula (I) including stereochemically isomeric forms, and salts, hydrates, solvates thereof, wherein Y, R1, R2, R4 and n have the meaning defined in the claims. The present invention also relates to processes for preparing said compounds, pharmaceutical compositions containing them and their use in HCV therapy.
摘要:
Macrocyclic derivative compounds that inhibit protein kinase enzymes are disclosed along with pharmaceutical compositions comprising these compounds and methods for synthesizing the same. Such compounds have utility in the treatment of proliferative diseases resulting from unregulated and/or disturbed kinase activity such as cancers, psoriasis, viral and bacterial infections, inflammatory and autoimmune diseases.
摘要:
Certain embodiments are directed to oridonin analogs or derivatives. In certain aspects, the derivatives are used as anticancer or anti-inflammatory agents.
摘要:
A macrocyclic compound having the structure of Formula (A), wherein each of R1 and R2 is independently (i) a 5-6 membered monocyclic aromatic ring containing 0-4 heteroatoms independently selected from nitrogen, oxygen, or sulfur; or (ii) an 8-10 membered bicyclic aromatic ring containing 0-6 heteroatoms independently selected from nitrogen, oxygen, or sulfur. Each R1 and R2 may independently be substituted by 0, 1, 2, 3, or 4 substituents. Z1 represents a covalent bond, an atom, or a functional group comprising a grouping of atoms, wherein the grouping of atoms includes at least one heteroatom selected from the group consisting of N, O, P, and S. Also, Z1 may represent (i) a 5-6 membered monocyclic aromatic ring containing 0-4 heteroatoms independently selected from nitrogen, oxygen, or sulfur; or (ii) an 8-10 membered bicyclic aromatic ring containing 0-6 heteroatoms independently selected from nitrogen, oxygen, or sulfur. Z2 represents a covalent bond, an atom, or a functional group comprising a grouping of atoms, wherein the grouping of atoms includes at least one heteroatom selected from the group consisting of N, O, P, and S. Variable v is an integer having a value of 1 or 0. T is a carbon atom, a nitrogen atom, a sulfur atom, or an oxygen atom. L is a linking group covalently bonded to T when v has a value of 1 or L is covalently bonded to R1 when v has a value of 0. L is covalently bonded to Z2 when Z2 is an atom or a functional group comprising grouping of atoms and/or L is covalently bonded to R2 when Z2 is a covalent bond. Each of R3, R4 and R5 may be the same as or different from each other and each is independently selected from the group consisting of hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, heterocyclyl, aryl, heteroaryl, aralkyl, and heteraralkyl, wherein each alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, heterocyclyl, aryl, heteroaryl, aralkyl, and heteraralkyl is optionally substituted by one or more suitable substituents.
摘要:
Macrocyclic derivative compounds that inhibit protein kinase enzymes are disclosed along with pharmaceutical compositions comprising these compounds and methods for synthesizing the same. Such compounds have utility in the treatment of proliferative diseases resulting from unregulated and/or disturbed kinase activity such as cancers, psoriasis, viral and bacterial infections, inflammatory and autoimmune diseases.
摘要:
The present invention relates to HDAC inhibitor derivatives, particularly derivatives of the free thiol of metabolites of the HDAC inhibitor FK228, pharmaceutical compositions thereof, and to methods of using such derivatives and pharmaceutical compositions thereof in the treatment of diseases associated with HDAC, in particular, tumor or cell proliferation diseases.
摘要:
Novel macrocyclic compounds are constructed to include large cyclic structures that are interrupted by at least one ring system. Each interrupting ring system includes two bridgehead atoms. Bridgehead atoms are bonded to one or more bridges that interconnect one or more ring systems thereby forming a large cyclic structure. Located in each bridge are two or more nitrogenous moieties that are derivatized with chemical functional groups. The ring systems can include further nitrogenous moieties, either as ring atoms or on pendant groups attached to the ring. These can also be derivatized with chemical functional groups. The totality of the chemical functional groups imparts certain conformational and other properties to the macrocyclic compounds. In accordance with certain embodiments of the invention, libraries of such macrocyclic compounds are prepared utilizing permutations and combinations of the chemical functional groups and the nitrogenous moieties to build complexity into the library.
摘要:
The present invention is directed to peptidomimetic macrocyclic compounds of the formula A: wherein W is a heterocycle, V is a heterocycle or aryl moiety and Z1 is a suitably substituted aryl or heterocycle moiety. The instant compounds inhibit prenyl-protein transferase and the prenylation of the oncogene protein Ras. The invention is further directed to chemotherapeutic compositions containing the compounds of this invention and methods for inhibiting prenyl-protein transferase and the prenylation of the oncogene protein Ras.
摘要:
The present invention relates to novel modified macrocyclic compounds of general formula (I) as described and defined herein, and methods for their preparation, their use for the treatment and/or prophylaxis of disorders, in particular of hyper-proliferative disorders and/or virally induced infectious diseases and/or of cardiovascular diseases. The invention further relates to intermediate compounds useful in the preparation of said compounds of general formula (I).