prebiotic routes towards RNA. Contemporary RNA, however, is not only constructed from the four canonical nucleobases (A, C, G, and U), it also contains many chemically modified (noncanonical) bases. A still open question is whether these noncanonicalbases were formed in parallel to the canonical bases (chemical origin) or later, when life demanded higher functional diversity (biological origin). Here
[EN] FGFR INHIBITORS AND METHODS OF USE THEREOF<br/>[FR] INHIBITEURS DE FGFR ET LEURS PROCÉDÉS D'UTILISATION
申请人:RELAY THERAPEUTICS INC
公开号:WO2020231990A1
公开(公告)日:2020-11-19
The present disclosure relates to novel compounds and pharmaceutical compositions thereof, and methods for inhibiting the activity of FGFR enzymes with the compounds and compositions of the disclosure. The present disclosure further relates to, but is not limited to, methods for treating disorders associated with FGFR signaling with the compounds and compositions of the disclosure.
Potential Antitumor<i>N</i>-Carbamoyl-<i>N</i>′-methyl-<i>N</i>′-nitroso Derivatives of Amino Acids
作者:Tomoya Machinami、Tetsuo Suami
DOI:10.1246/bcsj.48.1333
日期:1975.4
N-Carbamoyl-N′-methyl-N′-nitroso derivatives of amino acids have been prepared by treating the amino acids with methyl isocyanate followed by nitrosation with sodium nitrite in dilute acetic acid solution.
Reagents and Synthetic Methods; 19. Synthesis of<i>N</i>-(<i>N</i>-Aryl- or<i>N</i>-Alkylaminocarbonyl)-amino Acids by Addition of<i>N,O</i>-Bis[trimethylsilyl]amino Acids to Isocyanates
作者:A. Arrieta、C. Palomo
DOI:10.1055/s-1982-30060
日期:——
A Facile Synthesis of <i>N</i>-Carbamoylamino Acids
N-Carbamoylamino acids were obtained through the alkylation of monosubstituted parabanic acids followed by hydrolysis of the intermediate products. This new methodology furnishes structurally and functionally diverse N-carbamoylamino acids in high preparative yields and excellent purity.