The present invention provides compounds, compositions thereof, and methods of using the same.
本发明提供了化合物、其组合物以及使用这些化合物的方法。
Solution-state conformations of 2-pivaloylfuran, 2-pivaloylthiophen and 2-pivaloylpyrrole: a dipole moment and kerr effect study
作者:D. Mirarchi、G.L.D. Ritchie
DOI:10.1016/0022-2860(84)87048-9
日期:1984.5
Abstract Experimental dipole moments and infinite-dilution Kerr constants are reported for 2-pivaloylfuran, 2-pivaloylthiophen and 2-pivaloylpyrrole (Me 3 C·CO·C 4 H 3 X; X = O, S, NH) as solutes in carbon tetrachloride. Analysis of the results yields the effective dihedral angles and the percentage abundances of the XO- cis conformers as X = O, 15 ± 15°, 23 ± 10%; X = S, 27 ± 10°, 70 ± 20%; and X
摘要 报告了 2-新戊酰呋喃、2-新戊酰噻吩和 2-新戊酰吡咯 (Me 3 C·CO·C 4 H 3 X; X = O, S, NH) 在四氯化碳中作为溶质的实验偶极矩和无限稀释克尔常数. 结果分析得出有效二面角和 XO-顺式构象异构体的百分比丰度为 X = O, 15 ± 15°, 23 ± 10%; X = S, 27 ± 10°, 70 ± 20%; X = NH, 15 ± 5°, 95 ± 5%。描述了先前未制备的 2-新戊酰基吡咯的合成。
Synthesis of <i>N</i>-alkoxycarbonyl Pyrroles from <i>O</i>-Substituted Carbamates: A Synthetically Enabling Pyrrole Protection Strategy
作者:Jodie L. Hann、Catherine L. Lyall、Gabriele Kociok-Köhn、Simon E. Lewis
DOI:10.1021/acs.joc.3c01257
日期:2023.10.6
5-dimethoxytetrahydrofuran gives N-alkoxycarbonyl pyrroles in a single step and in good yield. By this method, several common amine protecting groups can be introduced on the pyrrole nitrogen. With the exception of N-Boc, N-alkoxycarbonyl groups have seen only minimal use for protection of the pyrrole nitrogen to date. Here, we show that N-alkoxycarbonyl protection can endow pyrrole with distinct reactivity in comparison
Inhibitors of Ras protein, methods to modulate the activity of Ras protein, and methods of treatment of disorders mediated by Ras protein are provided. A method for regulating activity of a K-Ras, H-Ras or N-Ras mutant protein with a compound is described. Disorders that can be treated include cancer, such as hematological cancer, pancreatic cancer, MYH associated polyposis, colorectal cancer, or lung cancer.