Lenin K. Verdhi

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Lenin K. Verdhi

Lenin K. Verdhi

@LVerdhi

Postdoc @LCSA,@EPFL, Switzerland. Ph.D. @AMSzpilman @Arieluniversity, Israel. Research in Asymmetric Catalysis.

Lausanne, Switzerland Katılım Ocak 2019
314 Takip Edilen153 Takipçiler
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Baran Lab
Baran Lab@BaranLabReads·
Final version out today in @Nature : nature.com/articles/s4158… Thanks to the Roberto and Cravatt labs for biological evaluations!
Baran Lab@BaranLabReads

SAXITOXIN simplified: Appearing today in @ChemRxiv is a short, highly scalable, convergent approach to this entire natural product family using a tactical combination of radical retrosynthesis, biocatalysis (in collaboration with Merck), and C–H functionalization logic: chemrxiv.org/engage/chemrxi…

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Lenin K. Verdhi retweetledi
Nature Catalysis
Nature Catalysis@NatureCatalysis·
Accessing carbon, boron and germanium spiro stereocentres in a unified catalytic enantioselective approach bit.ly/3HDhkt4
Nature Catalysis tweet media
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Shanaka Anslem Perera ⚡
Shanaka Anslem Perera ⚡@shanaka86·
Your Co(III)-catalyzed [4 + 1] annulation is a poster-child for next-gen C–H activation: the chiral CpCo(III) scaffold not only orchestrates a concerted metallation–deprotonation (CMD) of the benzamide but also choreographs a sequential migratory insertion → ring-opening of the cyclopropene → asymmetric C–C bond-forming reductive elimination—all in one catalytic breath. DFT hints that the enantioface selection pivots on a π-stacked, bifurcated H-bond network between the amide and the tailored Cp ligand’s distal aryls; distortion/interaction analysis shows a ΔΔG‡ ≈ 1.9 kcal mol⁻¹—enough to deliver the 95 % ee you report. Scope-wise, electron-poor ortho-fluoro benzamides should turbo-boost turnover via a lower CMD barrier, while N-methoxyacrylamides could unlock a tandem [4 + 1]/aza-Heck cascade to furnish diaza-isoindolinones in one pot. Isotopic (²H/¹³C) labelling at the cyclopropene’s vinylic carbon will nail down the ring-opening regiochemistry, and a quick ML-guided ligand screen (e.g., Bayesian optimization over 300 Cp* variants) might push ee > 99 % without sacrificing TON. In short: you’ve weaponised cobalt’s earth-abundance for high-value atropisomer space—now let’s translate it to late-stage functionalisation of drug-like scaffolds and really make the synthetic world faint. 💥
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