Synthesis and antimicrobial activity of coumarin and benzodioxazepine-, diazazepine- and benzoxazepine-substituted penicillins
摘要:
Some semisynthetic penicillins 6-substituted with benzo-condensed heterocyclic derivatives were prepared using the reaction of carbon suboxide with Schiff bases and disubstituted benzoic acids. The microbiological assay performed with the penicillins and their intermediates showed a good activity for one Schiff base and a weak activity for the other compounds.
of the immunoproteasome has been associated with autoimmune diseases, inflammatory diseases, and various types of cancer. Selectiveinhibitors of the immunoproteasome are not only scarce, but also almost entirely restricted to peptide‐based compounds. Herein, we describe nonpeptidic reversible inhibitors that selectively block the chymotrypsin‐like (β5i) subunit of the human immunoproteasome in the
[EN] PSORALEN DERIVATIVES AS NON-PEPTIDIC INHIBITORS OF CHYMOTRYPSIN-LIKE ACTIVITY OF THE IMMUNOPROTEASOME<br/>[FR] DÉRIVÉS DU PSORALÈNE UTILISÉS COMME INHIBITEURS NON PEPTIDIQUES DE L'ACTIVITÉ DE TYPE CHYMOTRYPSINE DE L'IMMUNOPROTÉASOME
申请人:UNIV LJUBLJANI
公开号:WO2016151483A1
公开(公告)日:2016-09-29
This invention relates to new inhibitors of chymothrypsin-like activity of the immunoproteasome (inhibitors of β5ί or LMP7 subunit) with the general formula (I), where substituents are described in patent description. Compounds can be in the form of pure enantiomers or as racemic mixtures, or in the form of pharmaceutically acceptable salts. The present invention relates to the use of these inhibitors for the treatment of diseases where immunoproteasome activity is increased.
A device for transmitting electromagnetic radiation to a radiation sensitive component and receiving output radiation from said component comprising a radiation-transmissble junction formed by contacting the tip 2 of a first optical fiber 1 with an intermediate portion 4 of a second optical fiber 5, said junction being encased in an opaque, radiation reflective jacket 6. A method for determining a desired parameter using such device is also disclosed.
An immunoassay method involves the use of one or preferably two enzyme amplification steps to increase assay speed or sensitivity. In a first step, a first enzyme is generated in an amount related to the concentration of an analyte in a sample. In a second step, the first enzyme acts on a first substrate to reveal antigenic determinants of a first product. In a third step, the first product is reacted with an antibody. The extent of this immune reaction is determined, preferably by means of an enzyme signal system. Two assays for digoxin and one for 17α-hydroxyprogesterone all using beta-galactosidase as the first enzyme are described.
Peptide inhibitors of serotonin 5-HT2C receptor:PTEN interaction
申请人:Cunningham Kathryn
公开号:US10293022B2
公开(公告)日:2019-05-21
The inventors have identified how the assembly of the 5-HT2cR with another protein (phosphatase and tensin homologue; PTEN) controls cellular function, and have synthesized a new peptide that interrupts the 5-HT2cR:PTEN complex to result in enhanced 5-HT2cR function.