Guilherme Caleffi

Visiting Professor at @ufrj • organic chemist • he/him

[Chemistry Europe @ChemEurope]

#ChemMedChem Intracellular and Extracellular Efficacy of Homoisoflavone Derivatives Against Mycobacterium Tuberculosis: Progress Toward Novel Antitubercular Agents (Guilherme S. Caleffi and co-workers) #openaccess 🔓 https://t.co/7S2RQRZc6R

[Hypervalent Iodine @HyperIodine]

Diversity-Generating Skeletal Editing Transformations. https://t.co/aOh6D5EjgZ

[Happy Researchers @hapyresearchers]

Thesis...

[Luiz-Eduardo Del-Bem @dudelbem]

🤷‍♂️

[Guilherme Caleffi @caleffi_gui]

🚨🎉 Excited to share our review article, "Alkaloids from Waltheria spp. (Malvaceae): Chemosystematic Aspects, Biosynthesis, Total Synthesis, and Biological Activities," just published in the International Journal of Molecular Sciences! 🌿

🔗 https://t.co/N4LE0XztIw

[IPPN_UFRJ @IPPN_UFRJ]

Seleções de Mestrado e Doutorado 2025/1
📅Inscrições de 20/12/24 a 14/03/25

Edital Mestrado 2025/1
🔗https://t.co/OBtaCSOwvX

Edital Doutorado 2025/1
🔗https://t.co/Pslq94cAMA

[ACS Organic Division @ACSorganic]

Watch the lecture by Janine Cossy (ESPCI Paris, France) entitled “Natural Products: Opportunities to Develop Efficient Synthetic Methods” which was given at the 2023 National Organic Chemistry Symposium (NOS)

https://t.co/SNXnkIMquD

[Eduardo Paes @eduardopaes]

Meus amados paulistanos, com todo respeito: é tão mais fácil vir para o Rio. Vocês serão mais felizes aqui e nós amamos vocês! Só chegar!

[Ali Max Erturk @erturklab]

Our new study shows that SARS-CoV-2 spike protein accumulates & persists in the body for years after infection, especially in the skull-meninges-brain axis, potentially driving long COVID. mRNA vaccines help but cannot stop it🔬🧠🦠🧵👇@cellhostmicrobe https://t.co/IEGx7HIrXf

[Neil Renic @NC_Renic]

My two moods when writing:

[SmartMat @SmartMat2]

Recent advances in phosphine-mediated sequential annulations

[Physics In History @PhysInHistory]

"People think of education as something they can finish."

- Isaac Asimov

[ricardo moreira borges @borgesmricardo]

https://t.co/NKaqOFblDx
https://t.co/3yKCqvvK38

[BBC News Brasil @bbcbrasil]

O brasileiro foi o único cientista a identificar uma doença (a doença de Chagas) em seus diversos estágios, incluindo seu agente causador, os sintomas e a forma de transmissão: https://t.co/dZdFfewylT

[ACS Publications Bio & Med Chem Content @ACSBioMed]

Don't miss the latest research on Biologically Active #NaturalProducts!

Read here ➡ https://t.co/tUyFJffzni

[CCS Chemistry @CCSChemistry]

Kinetic Resolution of Racemic 4-Substituted Chroman-2-ones Through Asymmetric Lactone Hydrogenation https://t.co/KyAHnVFQbD

#chemistry #openaccess #science #chemtwitter

[revista piauí @revistapiaui]

Deus e o diabo na universidade: nos anos 1930, as raízes da cruzada da extrema direita pelo controle ideológico do ensino. Leia no artigo de André Jobim Martins: https://t.co/eebMSLFhv6

[Sartillo-Piscil OrgChemLab @lab_fsp]

We proudly introduce a novel and modular approach to a very important type of alkaloids. Fantastic work of @ArelyGC3 and @JulioRoIba.
Synthetic Approach to Chromone and Flavonoid Piperidine Alkaloids | The Journal of Organic Chemistry https://t.co/5QGiTJH5Lk