62467-65-6Relevant articles and documents
SMALL MOLECULES THAT TARGET THE RNA THAT CAUSES ALS
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Paragraph 00179-00180, (2022/04/03)
Disclosed herein are compounds that selectively bind an expanded transcribed repeat r(G4C2)exp, prevent sequestration of RNA-binding proteins, and inhibit translation of repeat associated non-ATG (RAN) translation responsible for generation of toxic dipeptide repeats underlying diseases such as amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). The compounds and their pharmaceutical compositions are useful in treating a disease or condition characterized by an expanded G4C2 repeat RNA (r(G4C2)exp), such as ALS and FTD.
Substitution of the Dimethylamino Group in Gramines and One-Pot Cyclization to Tetrahydro-β-carbolines Using a Triazine-Based Activating Agent
Fujita, Hikaru,Nishikawa, Riho,Sasamoto, Ozora,Kitamura, Masanori,Kunishima, Munetaka
, p. 8380 - 8391 (2019/07/08)
A new method for the substitution of 3-[(dimethylamino)methyl]indoles (gramines) with malonate-based nucleophiles was developed using 2-chloro-4,6-dimethoxy-1,3,5-triazine (CDMT) as the activating agent for the dimethylamino group. The reaction was completed in 1.5-6 h at room temperature in the presence of a tert-amine base and lithium salt. CDMT afforded superior results to methyl iodide, a common activating agent for the dimethylamino group in Mannich bases, particularly in the reactions of 1-substituted gramines. The reactivity of the possible intermediates, bis(indol-3-ylmethyl)dimethylammonium salts, was examined to obtain mechanistic insights on the reaction. This substitution method with CDMT enabled the sequential transformation of gramines: substitution with (N-alkylidene)aminomalonates followed by the Pictet-Spengler reaction under acidic conditions afforded 1,2,3,4-tetrahydro-β-carboline derivatives in one pot.
A practical synthesis of indole-based heterocycles using an amidoaluminum-mediated strategy
Todd, Robert,Hossain, M. Mahmun
experimental part, p. 1846 - 1850 (2010/01/16)
A large number of biologically active compounds consist of an indole scaffolding. Because of this, chemists are continually searching for more efficient means through which to successfully synthesize the required alkaloids. In our recent effort to synthes