Intramolecular nitrogen-hydrogen, oxygen-hydrogen and sulfur-hydrogen insertion reactions. Synthesis of heterocycles from .alpha.-diazo .beta.-keto esters
作者:Mikel P. Moyer、Paul L. Feldman、Henry Rapoport
DOI:10.1021/jo00225a047
日期:1985.12
[EN] 3-SUBSTITUTED PROLINE DERIVATIVE<br/>[FR] DÉRIVÉ DE LA PROLINE 3-SUBSTITUÉ
Stereodivergent Synthesis of 3‐Hydroxyprolines and 3‐Hydroxypipecolic Acids via Ketoreductase‐Catalyzed Dynamic Kinetic Reduction
作者:Christopher K. Prier、Michael M.‐C. Lo、Hongming Li、Nobuyoshi Yasuda
DOI:10.1002/adsc.201900871
日期:2019.11.19
for the stereoselective synthesis of hydroxylated cyclic amino acids. Using ketoreductases, cyclic ketoesters are converted with high diastereo‐ and enantioselectivity to all isomers of 3‐hydroxyproline and 3‐hydroxypipecolic acid via a dynamic kinetic reduction reaction. This work highlights the ability of enzymes to provide solutions to challenges in stereoselective synthesis.
Accessing Highly Oxidized Imidazolidinone Cores via a Curtius Rearrangement: Total Synthesis of Colensolide A
作者:Evan Savelson、Jetze J. Tepe
DOI:10.1021/acs.orglett.3c01139
日期:2023.5.26
(HTHP-I) core present in colensolide A is a synthetically intriguingscaffold as a result of its high heteroatom/carbon ratio and perceived instability. The similarity of this core to other potent biologicalscaffolds has led us to develop a synthetic route utilizing isocyanate chemistry to access this core and complete the first total synthesis of colensolide A.
存在于 colensolide A 中的羟基四氢吡咯并咪唑啉酮 (HTHP-I) 核心是一种合成支架,因为它具有高杂原子/碳比和可感知的不稳定性。该核心与其他有效生物支架的相似性促使我们开发了一种利用异氰酸酯化学来获取该核心并完成 colensolide A 的首次全合成的合成路线。