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1H and 13C NMR spectral assignment of androstane derivatives.
Fuente A, Reyes M, Alvarez YM, Ruiz JA, Vélez H, Viñas-Bravo O, Montiel-Smith S, Meza-Reyes S, Sandoval-Ramírez J. Fuente A, et al. Among authors: vinas bravo o. Magn Reson Chem. 2005 Aug;43(8):676-8. doi: 10.1002/mrc.1605. Magn Reson Chem. 2005. PMID: 15937975
Rapid conversion of spirostans into furostan skeletons at room temperature.
Viñas-Bravo O, Martinez-Pascual R, Vega-Baez JL, Gómez-Calvario V, Sandoval-Ramírez J, Montiel-Smith S, Meza-Reyes S, López-De Rosas A, Martínez-Montiel M, Reyes M, Ruiz JA. Viñas-Bravo O, et al. Steroids. 2012 Jan;77(1-2):59-66. doi: 10.1016/j.steroids.2011.10.004. Epub 2011 Oct 20. Steroids. 2012. PMID: 22061618
Epimerization of C-22 in (25R)- and (25S)-sapogenins.
Viñas-Bravo O, Merino-Montiel P, Romero-López A, Montiel-Smith S, Meza-Reyes S, Meléndez FJ, Sandoval-Ramírez J. Viñas-Bravo O, et al. Steroids. 2015 Jan;93:60-7. doi: 10.1016/j.steroids.2014.10.004. Epub 2014 Nov 20. Steroids. 2015. PMID: 25449764
In search of cytotoxic selectivity on cancer cells with biogenically synthesized Ag/AgCl nanoparticles.
Ramírez-Hernández MJ, Valera-Zaragoza M, Viñas-Bravo O, Huerta-Heredia AA, Peña-Rico MA, Juarez-Arellano EA, Paniagua-Vega D, Ramírez-Vargas E, Sánchez-Valdes S. Ramírez-Hernández MJ, et al. Among authors: vinas bravo o. Beilstein J Nanotechnol. 2022 Dec 13;13:1505-1519. doi: 10.3762/bjnano.13.124. eCollection 2022. Beilstein J Nanotechnol. 2022. PMID: 36605610 Free PMC article.