Chiral 1-(1,3-dithian-2-yl) prop-2-en-1-ols: new scaffolds for enantiopure α-hydroxyaldehydes
作者:Masaru Akehi、Mariko Kawamoto、Tadakatsu Mandai
DOI:10.1016/j.tet.2015.05.039
日期:2015.9
We have demonstrated that chiral 1-(1,3-dithian-2-yl)prop-2-en-1-ols as new scaffolds, obtained by enzyme-catalyzed kinetic resolution, undergo Suzuki-Miyaura cross-couplings and hydroformylation smoothly. Also, we have found that a 1,3-dithianyl group of the products can be removed without any erosion of the enantiopurity under mild conditions. A new access to a variety of enantiopure α-hydroxyaldehydes
[EN] PROCESS FOR PREPARATION OF PROSTAGLANDIN F2alpha ANALOGUES<br/>[FR] PROCÉDÉ DE PRÉPARATION D'ANALOGUES DE PROSTAGLANDINE F2Alpha
申请人:INST FARMACEUTYCZNY
公开号:WO2013133730A1
公开(公告)日:2013-09-12
A convergent synthesis of the prostaglandin F2α analogues, travoprost and bimatoprost, was developed employing Julia-Lythgoe olefination of the structurally advanced phenylsulfone with an enantiomerically pure aldehyde ω-chain synthon. The novel convergent strategy allows the synthesis of a whole series of prostaglandin analogues of high purity from a common and structurally advanced prostaglandin intermediate.
PROCESS FOR PREPARATION OF PROSTAGLANDIN F2 ALPHA ANALOGUES
申请人:INSTYTUT FARMACEUTYCZNY
公开号:US20150031898A1
公开(公告)日:2015-01-29
A convergent synthesis of the prostaglandin F
2α
analogues, travoprost and bimatoprost, was developed employing Julia-Lythgoe olefination of the structurally advanced phenylsulfone with an enantiomerically pure aldehyde ω-chain synthon. The novel convergent strategy allows the synthesis of a whole series of prostaglandin analogues of high purity from a common and structurally advanced prostaglandin intermediate.
synthon (–)‐(S)‐16a. Subsequent hydrolysis of protecting groups and final amidation of the diol 26a yielded bimatoprost (10a). The main advantage of the current strategy is the preparation of high‐purity bimatoprost (10a). The novel convergent strategy allows the synthesis of a whole series of 13,14‐en‐15‐ol prostamideF2α analogues with the desired C‐15 asymmetric center configuration from a common and structurally