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The synthesis of pentacoordinated Tin(IV) compounds derived from aminoalcohols is described. The compounds were characterized by IR, 1 H-, 13C-, and 119Sn-NMR, the mass spectrometry exhibits molecular ions corresponding to monomeric species. All compounds were evaluated for in vitro cytotoxic activities against five human tumor cell lines, U251 (human glioblastoma), PC-3 (human prostatic adenocarcinoma), K-562 (human chronic myelogenous leukemia), HCT-15 (human colorectal adenocarcinoma), MCF-7 (human mammary adenocarcinoma). The cytotoxic evaluation revealed that all compounds possess higher cytotoxic potency than that of the cisplatin, which was used as reference. Additionally, MT2 cells (human T-lymphocytes) were also evaluated.

Ring opening reactions O 0132 Facile Synthesis of Aminoalcohols by Ring Opening of Epoxides under Solvent-Free Conditions. -The cleavage of symmetrical and unsymmetrical epoxides under solvent-free conditions using aromatic and aliphatic amines offers a convenient entry to β-amino alcohols. -(HUERTA, G.; CONTRERAS-ORDONEZ, G.; ALVAREZ-TOLEDANO, C.; SANTES, V.; GOMEZ*, E.; TOSCANO, R. A.; Synth.

Abstract. The preparation and structural characterization of dimeric and monomeric siloxanes are described. The silicon complexes were obtained from β-amino alcohols and dichlorodimethylsilane, bisdimethylaminodimethylsilane and diphenyldichlorosilane. The complexes were characterized by 1H, 13C and 29Si NMR spectroscopy and mass spectrometry. The X-ray crystallography study for one compound confirmed the formation of a sixteen-membered heterocycle.Resumen. En este trabajo se describe la preparación y la caracterización de siloxanos diméricos y monoméricos. Los complejos de silicio se obtuvieron por reacción de β-amino alcoholes con diclorodimetilsilano, bisdimetilaminodimetilsilano y diclorodifenilsilano. Los complejos se caracterizaron por RMN de 1H, 13C y 29Si, y espectrometría de masas. La estructura molecular de un anillo de 16 miembros para uno de los compuestos se confirmó por difracción de rayos-X.