摘要:
The invention provides compositions of novel high penetration compositions (HPC) or high penetration prodrugs (HPP) of peptides and peptide-related compounds, which are capable of crossing biological barriers with high penetration efficiency. The HPPs are capable of being converted to parent active drugs or drug metabolites after crossing the biological barrier and thus can render treatments for the conditions that the parent drugs or metabolites can. Additionally, the HPPs are capable of reaching areas that parent drugs may not be able to access or to render a sufficient concentration at the target areas and therefore render novel treatments. The HPPs can be administered to a subject through various administration routes, e.g., locally delivered to an action site of a condition with a high concentration or systematically administered to a biological subject and enter the general circulation with a faster rate.
摘要:
The invention relates to synthetic routes for preparing telaprevir and boceprevir, and its intermediates as well as peptides other than telaprevir. The synthetic routes are based on a Mukaiyama aldol addition reaction of a silyl enol ether or an enolate with an imine. The invention also refers to novel intermediates for preparing telaprevir/boceprevir or other peptides.
摘要:
The invention relates to synthetic peptide amide ligands of the kappa opioid receptor and particularly to agonists of the kappa opioid receptor that exhibit low P450 CYP inhibition and low penetration into the brain. The synthetic peptide amides of the invention conform to the structure: The compounds are useful in the prophylaxis and treatment of pain and inflammation associated with a variety of diseases and conditions.
摘要:
Provided herein are compounds of formula (I): which are pro-drugs of epoxy ketone protease inhibitors. The compounds disclosed herein include one or more moieties that (i) confer enhanced solubility, permeability, pharmacokinetics, and/or pharmacodynamics properties to epoxy ketone protease inhibitors, and (ii) can be released in vivo. Also provided herein are pharmaceutical compositions of the compounds of formula (I), and methods of using the compounds of formula (I) to treat diseases and conditions.
摘要:
The invention relates to methods and products for preventing and treating neuronal cell death-associated diseases and/or conditions. The products and methods are useful for research and for clinical applications relating to neuronal cell-death associated diseases and/or conditions.
摘要:
An eye drop containing (i) a peptide having an amino acid sequence which is represented by Ser-Ser-Ser-Arg (“SSSR”), or a pharmaceutically acceptable salt thereof and (ii) a peptide having an amino acid sequence represented by Phe-Gly-Leu-Met-NH2 (“FGLM”), or a pharmaceutically acceptable salt thereof. The concentration ratio of the SSSR or a pharmaceutically acceptable salt thereof and the FGLM or a pharmaceutically acceptable salt thereof is 1/15 and 1/50. The concentration of the SSSR or a pharmaceutically acceptable salt thereof is 0.001% to 0.3% (w/v), and the concentration of the FGLM or a pharmaceutically acceptable salt thereof is 0.015% to 1.5% (w/v). The pH of the eye drop is 2.5 to 6.5. The eye drop serves to minimize the occurrence of side effects and serves to improve its storage stability.
摘要:
The invention provides compositions of novel high penetration compositions (HPC) or high penetration prodrugs (HPP) of peptides and peptide-related compounds, which are capable of crossing biological barriers with higher penetration efficiency comparing to their parent drugs. The HPPs are capable of being converted to parent drugs or drug metabolites after crossing the biological barrier and thus can render treatments for the conditions that the parent drugs or metabolites can. Additionally, the HPPs/HPCs are capable of reaching areas that parent drugs may not be able to access or to render a sufficient concentration at the target areas and therefore render novel treatments. The HPPs/HPCs can be administered to a subject through various administration routes, e.g., locally delivered to an action site of a condition with a high concentration or systematically administered to a biological subject and enter the general circulation with a faster rate.
摘要:
Methods and compositions for treating pain are disclosed. The compositions are based on dry powders comprising microparticles of diketopiperazines and an analgesic active agent. The analgesic in the compositions comprises one or more peptide analgesics or derivatives thereof, which are administered to a subject using a pulmonary inhalation drug delivery system comprising a dry powder inhaler and the analgesic composition. The present compositions produce fewer side effects associated with current opioid therapy.
摘要:
The invention provides compounds and methods, for example, to carry out organocatalytic Michael additions of aldehydes to cyclically constrained nitroethylene compounds catalyzed by a proline derivative to provide cyclically constrained α-substituted-γ-nitro-aldehydes. The reaction can be rendered enantioselective when a chiral pyrrolidine catalyst is used, allowing for Michael adducts in nearly optically pure form (e.g., 96 to >99% e.e.).The Michael adducts can bear a single substituent or dual substituents adjacent to the carbonyl. The Michael adducts can be efficiently converted to cyclically constrained protected γ-amino acid residues, which are essential for systematic conformational studies of γ-peptide foldamers. New methods are also provided to prepare other γ-amino acids and peptides. These new building blocks can be used to prepare foldamers, such as α/γ-peptide foldamers, that adopt specific helical conformations in solution and in the solid state.
摘要:
The present invention relates to a process for the production of bivalirudin, a 20-mer peptide of formula H-D-Phe1-Pro-Arg-Pro-Gly5-Gly-Gly-Gly-Asn-Gly10-Asp-Phe-Glu-Glu-Ile15-Pro-Glu-Glu-Tyr-Leu20-OH (I) via a convergent five-fragment synthesis, and to several peptide intermediates thereof.