551-41-7Relevant academic research and scientific papers
Fe-catalyzed Fukuyama-type indole synthesis triggered by hydrogen atom transfer
Huang, Hanmin,Yu, Min,Zhang, Tianze
, p. 10501 - 10505 (2021/08/20)
Fe, Co, and Mn hydride-initiated radical olefin additions have enjoyed great success in modern synthesis, yet the extension of other hydrogen radicalophiles instead of olefins remains largely elusive. Herein, we report an efficient Fe-catalyzed intramolec
MACROCYCLIC INHIBITORS OF THE PD-1/PD-L1 AND CD80/PD-L1 PROTEIN/PROTEIN INTERACTIONS
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Page/Page column 136; 137, (2017/11/04)
The present disclosure provides novel macrocyclic peptides which inhibit the PD-1/PD-Ll and PD-L1/CD80 protein/protein interaction, and thus are useful for the amelioration of various diseases, including cancer and infectious diseases. wherein: A is selected from a bond.
Scope and mechanism of direct indole and pyrrole couplings adjacent to carbonyl compounds: Total synthesis of acremoauxin A and oxazinin 3
Richter, Jeremy M.,Whitefield, Brandon W.,Maimone, Thomas J.,Lin, David W.,Castroviejo, M. Pilar,Baran, Phil S.
, p. 12857 - 12869 (2008/09/16)
Full details are provided for a recently invented method to couple indoles and pyrroles to carbonyl compounds. The reaction is ideally suited for structurally complex substrates and exhibits high levels of chemoselectivity (functional group tolerability), regioselectivity (coupling occurs exclusively at C-3 of indole or C-2 of pyrrole), stereoselectivity (substrate control), and practicality (amenable to scaleup). In addition, quaternary stereocenters are easily and predictably generated. The reaction has been applied to a number of synthetic problems including total syntheses of members of the hapalindole family of natural products, ketorolac, acremoauxin A, and oxazinin 3. Mechanistically, this coupling protocol appears to operate by a single electron-transfer process requiring generation of an electron-deficient radical adjacent to a carbonyl which is then intercepted by an indole or pyrrole anion.
Design and synthesis of 1-indol-1-yl-propan-2-ones as inhibitors of human cytosolic phospholipase A2α
Ludwig, Joachim,Bovens, Stefanie,Brauch, Carsten,Elfringhoff, Alwine Schulze,Lehr, Matthias
, p. 2611 - 2620 (2007/10/03)
The synthesis and structure-activity relationship study of a series of 1-indol-1-yl-3-phenoxypropan-2-one inhibitors of cytosolic phospholipase A 2α. (cPLA2α) are described. The compounds were evaluated in a vesicle assay with isolated cPLA2α and in cellular assays with intact human platelets. Systematic variation led to 3-methylhydrogen 1-[3-(4-decyloxyphenoxy)-2-oxopropyl]indole-3,5-dicarboxylate (57), which revealed the highest activity against the isolated enzyme. With an IC50 value of 4.3 nM in this assay, it is one of the most potent in vitro cPLA2α inhibitors known today.
Direct coupling of indoles with carbonyl compounds: Short, enantioselective, gram-scale synthetic entry into the hapalindole and fischerindole alkaloid families
Baran, Phil S.,Richter, Jeremy M.
, p. 7450 - 7451 (2007/10/03)
The invention of a method for the direct union of indoles and carbonyl compounds (ketones, amides, esters) is described. Using this new method, a short, enantioselective, gram-scale and protecting group-free synthetic entry to the fischerindole and hapali
