The present invention provides a compound of the following formula and salts thereof:
Also provided is the use of these compounds as antibacterials, compositions comprising them and processes for their manufacture.
Professor Dieter Enders. Abstract The synthesis of polyfunctionalized indolizidines from pipecolinic acid alkyl ester derivatives, aldehydes and a wide range of dipolarophiles by multicomponent 1,3-dipolarcycloadditions is developed in a diastereoselective manner. The cycloadditions take place in toluene with short reaction times at 70 °C, giving good yields. The synthesis of these fused heterocycles is
Base-Promoted C→N Acyl Rearrangement: An Unconventional Approach to α-Amino Acid Derivatives
作者:Iratxe Ugarriza、Uxue Uria、Luisa Carrillo、Jose L. Vicario、Efraim Reyes
DOI:10.1002/chem.201402514
日期:2014.9.8
N‐alkyl aminomalonates undergo a fast and selective intramolecular C→N acylrearrangement reaction in the presence of a strong base, leading to N‐protected glycinates in excellent yield. Moreover, the fact that the reaction proceeds through a nucleophilic enolate intermediate has been used for implementing a tandem rearrangement/alkylation sequence that has been applied to the preparation of synthetically
Transition-metal-free regioselective synthesis of alkylboronates from arylacetylenes and vinyl arenes
作者:Kai Yang、Qiuling Song
DOI:10.1039/c5gc02633d
日期:——
A transition-metal-free synthesis of alkylboronates from arylacetylenes or vinyl arenes and B2pin2via tandem borylation and protodeboronation has been developed. This reaction features with excellent regioselectivities, broad functional group tolerance and good yields in both small and gram scale.
Enantioselective Synthesis of α‐Secondary and α‐Tertiary Piperazin‐2‐ones and Piperazines by Catalytic Asymmetric Allylic Alkylation
作者:Katerina M. Korch、Christian Eidamshaus、Douglas C. Behenna、Sangkil Nam、David Horne、Brian M. Stoltz
DOI:10.1002/anie.201408609
日期:2015.1.2
The asymmetric palladium‐catalyzed decarboxylative allylicalkylation of differentially N‐protected piperazin‐2‐ones allows the synthesis of a variety of highly enantioenriched tertiarypiperazine‐2‐ones. Deprotection and reduction affords the corresponding tertiarypiperazines, which can be employed for the synthesis of medicinally important analogues. The introduction of these chiral tertiary piperazines