Acyloin rearrangement of α-hydroxy acetals: Application to the methyl l-mycaroside synthesis
摘要:
Acid treatment of alpha-hydroxy acetals induced 1,2-alkyl, aryl, or alkenyl migration. An alkenyl migration product was utilized as a starting material of methyl L-mycaroside synthesis.
[EN] BENZIMIDAZOLE COMPOUND, PREPARATION METHOD THEREFOR AND USE THEREOF<br/>[FR] COMPOSÉ DE BENZIMIDAZOLE, SON PROCÉDÉ DE PRÉPARATION ET SON UTILISATION<br/>[ZH] 苯并咪唑化合物、其制备方法及其用途
申请人:SICHUAN KELUN BIOTECH BIOPHARMACEUTICAL CO LTD
The structures and synthesis of the four major human metabolites of docetaxel are reported. These metabolites, i.e. compounds 3, 4a,b and 5, are side-chain oxidation derivatives. They were prepared by partial synthesis from the previously described amino-taxoid 8 using mixed-carbonates as acylation reagents. In vitro biological activities are detailed.
Parrain, Jean-Luc; Beaudet, Isabelle; Cintrat, Jean-Christophe, Bulletin de la Societe Chimique de France, 1994, vol. 131, # 3, p. 304 - 312