Traceless synthesis of 2-aminoimidazoquinoxalinones has been performed on soluble polymer support under open-vessel microwave dielectric heating. The reaction progression is monitored directly by the conventional proton NMR which indicated no release of the substrate from the support. Fmoc-deprotected amino acid
1. The effects of some possible inhibitors of ectonucleotidases on the breakdown of extracellular ATP by strips of guinea-pig urinary bladder were investigated. 2. Suramin and ethacrynic acid (10 mM) both inhibited ATP breakdown significantly, and difluorodinitrobenzene (10 mM) inhibited
Journal of combinatorial chemistry, 11(4), 556-575 (2009-05-28)
This paper reports a versatile, good-yielding, solution-phase method that is a substituent diversity-directed synthesis of 1H-indoles (6-13, 17-20) and 1-hydroxyindoles (14, 15) starting from commercially available 1,5-difluoro-2,4-dinitrobenzene. The synthetic products possessed the maximum six diversity points.
Journal of combinatorial chemistry, 9(1), 70-78 (2007-01-09)
This paper describes our recent efforts to synthesize novel compound scaffolds integrating 2-quinoxalinol with privileged structures of 1,3-dihydro-benzoimidazol-2-one, 1,3-dihydro-benzoimidazole-2-thione, 3-hydroxy-1H-quinoxalin-2-one, 2H-benzo[1,4]oxazin-3-ol, 2H-benzo[1,4]thiazin-3-ol, and 1,3,4,5-tetrahydro-benzo[1,4]diazepin-2-one, respectively. Eight novel benzofused tricycles and their substituent diversity points were developed. These include pyrazino[2,3-g]quinoxaline-2,8-diol (I)
International journal of peptide and protein research, 30(3), 423-430 (1987-09-01)
Derivatives of bovine growth hormone, containing monoaminotyrosyl residues in positions 35, 42 and 174, were treated at pH 3.6 with a bifunctional reagent, 1,5-difluoro-2,4-dinitrobenzene. Under these conditions aminotyrosyl groups reacted. On changing the pH to 9.3, the second fluorine atom
Nasz zespół naukowców ma doświadczenie we wszystkich obszarach badań, w tym w naukach przyrodniczych, materiałoznawstwie, syntezie chemicznej, chromatografii, analityce i wielu innych dziedzinach.
![1,8-Diazabicyclo[5.4.0]undec-7-ene 98%](/deepweb/assets/sigmaaldrich/product/structures/120/564/5b373e23-1624-489c-8efb-692de0f96ffb/640/5b373e23-1624-489c-8efb-692de0f96ffb.png)
