20470-24-0Relevant articles and documents
Mimicking natural phytohormones. 26-Hydroxycholestan-22-one derivatives as plant growth promoters
Zeferino-Diaz, Reyna,Hilario-Martinez, J. Ciciolil,Rodriguez-Acosta, Maricela,Carrasco-Carballo, Alan,Hernandez-Linares, Maria Guadalupe,Sandoval-Ramirez, Jesus,Fernandez-Herrera, Maria A.
, p. 20 - 26 (2017/08/02)
26-Hydroxycholestan-22-one derivatives with oxygenated functions in the rings A and/or B were successfully synthesized from diosgenin. After the modifications of rings A and B, the spiroketal side chain was selectively opened through a Lewis acid mediated
Glycosyl trifluoroacetimidates. 2. Synthesis of dioscin and Xiebai saponin I
Yu, Biao,Tao, Houchao
, p. 9099 - 9102 (2007/10/03)
Two trisaccharide steroidal saponins, dioscin (1) and Xiebai saponin I (2) with various bioactivities, were efficiently synthesized using the newly developed glycosyl N-phenyl trifluoroacetimidates (10-13) as glycosylation donors. Thus, dioscin was synthesized in five steps and a 33% overall yield from diosgenin and glycosyl trifluoroacetimidates (10 and 11). Xiebai saponin I was synthesized in eight steps and a 32% overall yield from laxogenin and glycosyl trifluoroacetimidates (10, 12, and 13), whereupon, the rare steroid laxogenin was prepared from diosgenin in four steps and an overall 69% yield. All the glycosylation reactions involved in the present syntheses demonstrated that glycosyl trifluoroacetimidates were successful donors comparable to the corresponding glycosyl trichloroacetimidates.
Synthesis of (22R, 25R)-3β,26-dihydroxy-5α-furostan-6-one
Iglesias Arteaga, Martin A.,Perez Gil, Roxana,Leliebre Lara, Vivian,Perez Martinez, Carlos S.,Coll Machado, Francisco,Rosado Perez, Aristide,Pozo Rios, Luis
, p. 1381 - 1386 (2007/10/03)
The synthesis of a plant growth promoter furostanol which bears the characteristic functionality of teasterone on rings A and B is described.