Gold‐Catalyzed One‐Pot Synthesis of 1,3‐Disubstituted Allenes from Benzaldehydes and Terminal Alkynes
作者:Danilo M. Lustosa、Simon Clemens、Matthias Rudolph、A. Stephen K. Hashmi
DOI:10.1002/adsc.201900824
日期:2019.11.5
A new and facile one‐pot synthesis of 1,3‐disubstituted allenes, using cheap and readily available terminal alkynes, benzaldehyde derivatives and morpholine, was developed. A small library of 20 allenes demonstrates a broad applicability, with yields up to 86%. Isotopic‐labelling and cross‐over experiments strongly indicate that our reaction proceeds via a two‐step A3‐coupling followed by a 1,5‐hydrogen
Amino Alcohols as Potential Antibiotic and Antifungal Leads
作者:Jennifer R. Baker、Peter J. Cossar、Mark A. T. Blaskovich、Alysha G. Elliott、Johannes Zuegg、Matthew A. Cooper、Peter J. Lewis、Adam McCluskey
DOI:10.3390/molecules27072050
日期:——
Staphylococcus aureus. Examination of the terminal aromatic substituent via oxirane aminolysis allowed for the synthesis of three new focused libraries of afforded amino alcohols. Aromatic substituted piperidine or piperazine switched library activity from antibacterial to anti-fungal activity with ((Z)-2-(3,4-dichlorophenyl)-3-(4-(2-hydroxy-3-(4-methylpiperazin-1-yl)propoxy)phenyl)acrylonitrile), ((Z)-2-(3
TrifluoromethylN,N-aminals are important precursors allowing access to fluorinated building blocks. In this work, the direct synthesis of trifluoromethylN,N-aminals from nitrogen containing heterocycles is reported using argon plasma in a continuous flow microreactor without any additives or metal catalysts. Their transformation to N-trifluoroethyl amines is also reported.
三氟甲基N , N -胺类化合物是重要的前体,可用于获取氟化结构单元。在这项工作中,报道了在没有任何添加剂或金属催化剂的情况下,在连续流动微反应器中使用氩等离子体从含氮杂环化合物直接合成三氟甲基N , N-胺。还报道了它们向N-三氟乙基胺的转化。
A General Method to Improve Fluorophores Using Deuterated Auxochromes
作者:Jonathan B. Grimm、Liangqi Xie、Jason C. Casler、Ronak Patel、Ariana N. Tkachuk、Natalie Falco、Heejun Choi、Jennifer Lippincott-Schwartz、Timothy A. Brown、Benjamin S. Glick、Zhe Liu、Luke D. Lavis
DOI:10.1021/jacsau.1c00006
日期:2021.5.24
describe a general method to improve small-molecule fluorophores by incorporating deuterium into the alkylamino auxochromes of rhodamines and other dyes. This strategy increases fluorescence quantum yield, inhibits photochemically inducedspectralshifts, and slows irreparable photobleaching, yielding next-generation labels with improved performance in cellular imaging experiments.
This invention also provides compound of Formula (I) including pharmaceutical compositions comprising a compound of Formula (I) and a pharmaceutically acceptable carrier. This invention also provides the use of such compounds and compositions in methods of treating diseases and conditions that are beneficially treated by administering pitolisant. Some exemplary embodiments include a method of treating a disease or condition selected from narcolepsy, daytime sleepiness (particularly in subjects suffering from Parkinson's disease or obstructive sleep apnea syndrome), and cognitive defects in psychiatric conditions, the method comprising the step of administering to a subject in need thereof a pharmaceutically acceptable composition of the present invention.