Disclosed herein are compounds that are effective for treatment of various disease states associated with senescence. The disclosed compounds can be used to eliminate senescent cells for disease treatment. The dosing of the compounds includes both single administration and regimens of cycling dosages.
Synthesis of Some New Spiro Heterocycles from the Reaction of Cycloalkylidenemal Ononitriles with Active Methylene Reagents
作者:A. K. El-Shafei、A. A. Sultan、A. M. Soliman、E. A. Ahmed
DOI:10.1080/00397919508015472
日期:1995.10
Abstract The reaction of cycloalkylidenemalononitriles 1a–c with some active methylene reagents as well as cycloalkanones in boiling ethanol containing piperidine catalyst affords a series of new spiro heterocyclic systems.
Synthesis of 8′-Oxo-3′,5′,7′,11′-tetraazaspiro-[cyclohexane-1,13′-tricyclo[7.3.1.02,7]tridec[2]ene]-1′,9′-dicarbonitriles
作者:A. N. Khrustaleva、V. V. Dotsenko、S. G. Krivokolysko
DOI:10.1134/s1070428016090232
日期:2016.9
on Mannich reactions with 2-oxotetrahydropyridine derivatives [1–3], in this communication we report the use of 2-amino-4-oxo-3azaspiro[5.5]undec-1-ene-1,5-dicarbonitrile (1) as a promising polyfunctional substrate. El-Shafei et al. [4] synthesized compound 1 in 55% yield by reaction of cyclohexylidenemalononitrile with cyanoacetamide. We simplified the procedure for the synthesis of 1. One-pot three-component