作者:Samuel D. Griggs、Nathan Thompson、Daniel T. Tape、Marie Fabre、Paul A. Clarke
DOI:10.1002/chem.201702467
日期:2017.7.12
A general two-stepsynthesis of 2-spiropiperidines has been developed. δ-Amino-β-ketoesters can be reacted with cyclic ketones to generate 2-spiropiperidines in good to excellent yields. The 2-spiropiperidines formed occupy an under-explored region of 3D-chemical space and are novel scaffolds for use in drug discovery programs. These 2-spiropiperidines can be further functionalised to generate small
The invention relates to lysobactin amides and methods for their preparation, as well as their use for manufacturing medicaments for the treatment and/or prophylaxis of diseases, in particular bacterial infectious diseases.
Asymmetric Aminalization via Cation-Binding Catalysis
作者:Sang Yeon Park、Yidong Liu、Joong Suk Oh、Yoo Kyung Kweon、Yong Bok Jeong、Mengying Duan、Yu Tan、Ji-Woong Lee、Hailong Yan、Choong Eui Song
DOI:10.1002/chem.201703800
日期:2018.1.24
Asymmetric cation‐binding catalysis, in principle, can generate “chiral” anionic nucleophiles, where the counter cations are coordinated within chiral environments. Nitrogen nucleophiles are intrinsically basic, therefore, its use as nucleophiles is often challenging and limiting the scope of the reaction. Particularly, a formation of configurationally labile aminal centers with alkyl substituents
Asymmetric Mannich Reaction and Construction of Axially Chiral Sulfone-Containing Styrenes in One Pot from α-Amido Sulfones Based on the Waste–Reuse Strategy
作者:Dongmei Li、Yu Tan、Lei Peng、Shan Li、Nan Zhang、Yidong Liu、Hailong Yan
DOI:10.1021/acs.orglett.8b02087
日期:2018.8.17
simultaneous asymmetric Mannichreaction and the construction of axially chiral sulfone-containing styrenes in one pot from α-amidosulfones based on the waste–reuse strategy was demonstrated. A series of chiral β-amino diesters and axially chiral sulfone-containing styrenes with various functional groups were synthesized in good to excellent yields and enantioselectivities under mild conditions. In
Synthesis of highly substituted 2-spiropiperidines
作者:Samuel D. Griggs、Nathan Thompson、Daniel T. Tape、Marie Fabre、Paul A. Clarke
DOI:10.1039/c8ob01272e
日期:——
2-Spiropiperidines are a highly desirable, yet under represented structure in drug discovery. 2-Spiropiperidines were synthesised in either a two-pot or one-pot reaction. In the two-pot reaction, the addition of a Weiler dianion to N-Boc imines, followed by deprotection and in situ condensation with a cyclic ketone generated functionalised 2-spiropiperidines in good to excellent yields. In the one-pot