Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Martha C. Mayorquín-Torres"'
Autor:
William H. García-Santos, Ariadna M. Quiroz-Mendoza, Martha C. Mayorquín-Torres, MARCOS FLORES-ALAMOS, Martín A. Iglesias-Arteaga
Publikováno v:
Synthesis.
The synthesis of two diastereomeric steroid spiroketals bearing the 2,3-dihydrobenzofuran moiety is described. The structure of the obtained compounds was elucidated by combined 1D and 2d NMR techniques and corroborated by X-ray studies.
Autor:
Marcos Flores-Alamo, Martha C. Mayorquín-Torres, Martín A. Iglesias-Arteaga, Mauricio Maldonado-Domínguez
Publikováno v:
Synthesis. 54:643-654
The synthesis of six dimeric spiroketals bearing an estradiol half fused to the 5α- or 5β-epimers of androstane, cholestane, and spirostane nuclei is described. The synthetic procedure comprises the Sonogashira coupling of different steroid alkyn
Autor:
Braulio Rodríguez-Molina, Mauricio Maldonado-Domínguez, Marcos Flores-Alamo, Armando Navarro-Huerta, Martha C. Mayorquín-Torres, Martín A. Iglesias-Arteaga
Publikováno v:
The Journal of Organic Chemistry. 86:4112-4120
A series of hybrid dimers having orthogonal steroidal cores bridged by a chroman ketal moiety were obtained by Pd-catalyzed three-component reactions of steroid alkynols, 2-formylestradiol 17-monoacetate, and methyl orthoformate, via ortho-quinone me
Autor:
Marcos Flores-Alamo, Martha C. Mayorquín-Torres, Gerardo I. Santiago-Sampedro, Martín A. Iglesias-Arteaga
Publikováno v:
Synthesis. 51:2909-2914
Two symmetrical dimers and one hybrid dimer in which the steroid cores are connected by a 1,4-phenylene moiety were obtained by double Suzuki–Miyaura cross coupling of benzene-1,4-diboronic acid with 4-bromo-4-en-3-oxosteroids derived from choleste
Autor:
Martha C, Mayorquín-Torres, Armando, Navarro-Huerta, Mauricio, Maldonado-Domínguez, Marcos, Flores-Álamo, Braulio, Rodríguez-Molina, Martín A, Iglesias-Arteaga
Publikováno v:
The Journal of organic chemistry. 86(5)
A series of hybrid dimers having orthogonal steroidal cores bridged by a chroman ketal moiety were obtained by Pd-catalyzed three-component reactions of steroid alkynols, 2-formylestradiol 17-monoacetate, and methyl orthoformate, via
Autor:
Ignacio Camacho-Arroyo, Martha C. Mayorquín-Torres, Marcos Flores-Alamo, Juan Carlos González-Orozco, Martín A. Iglesias-Arteaga
Publikováno v:
Organicbiomolecular chemistry. 18(4)
Nine cytotoxic [5/7] and [6/6] benzannulated steroid spiroketals were synthesized by palladium catalyzed spiroketalization of 5α and 5β-alkynediols derived from testosterone, diosgenin and cholesterol. The regioselectivity of the spiroketalization
Autor:
Martín A. Iglesias-Arteaga, Martha C. Mayorquín-Torres, Salvador Pérez-Estrada, Braulio Rodríguez-Molina, Annia Galano, Abraham Colin-Molina
Publikováno v:
The Journal of Organic Chemistry. 83:3768-3779
A novel steroid molecular rotor was obtained in four steps from the naturally occurring spirostane sapogenin diosgenin. The structural and dynamic characterization was carried out by solution NMR, VT X-ray diffraction, solid state
Publikováno v:
Tetrahedron Letters. 58:3500-3504
A previously reported Pd-catalyzed MCR of 4-pentyn-1-ol derivatives with salicylaldehyde and methyl orthoformate follows an unexpected course when carried out with the 5α- and 5β-epimers of 4,5-secocholestan-5-ol, leading to chroman ketals. The hom
Publikováno v:
Tetrahedron Letters. 58:2073-2076
Sonogashira coupling of 17β-acetoxy-4,5-secoandrost-3-yn-5-one with 2-iodobenzyl alcohol, followed by NABH4 reduction afforded two epimeric steroid alkynediols that after separation underwent palladium-catalyzed spirocyclization to produce the corre