Vitamin D3: synthesis of seco C-9,11,21-trisnor-17-methyl-1α, 25-dihydroxyvitamin D3 analogues
摘要:
The synthesis and biological activities of seco C-9,11,21-trisnor-17-methyl-1alpha,25-dihydroxyvitamin D-3 analogues (D-ring analogues) are described. (C) 2002 Elsevier Science Ltd. All rights reserved.
[EN] VITAMIN D3 ANALOGUES FOR THE PREVENTION AND TREATMENT OF BONE DISORDERS [FR] ANALOGUES DE LA VITAMINE D3 POUR LA PREVENTION ET POUR LE TRAITEMENT DE TROUBLES OSSEUX
A Phosphine-Free Manganese Catalyst Enables Stereoselective Synthesis of (1 + <i>n</i>)-Membered Cycloalkanes from Methyl Ketones and 1,<i>n</i>-Diols
作者:Akash Jana、Kuhali Das、Abhishek Kundu、Pradip Ramdas Thorve、Debashis Adhikari、Biplab Maji
DOI:10.1021/acscatal.9b05567
日期:2020.2.21
Herein, we report the stereoselective synthesis of (1 + n)-membered cycloalkane from methyl ketone and 1,n-diol. A manganese(I) complex bearing a phosphine-free ligand catalyzed the reaction, which involved the formation of two C–C bonds via a sequence of intermolecular- and intramolecular-borrowing hydrogenation reactions. It produces 2 mol of water as the sole byproduct, making the process atom economical
VITAMIN D3 ANALOGUES FOR THE PREVENTION AND TREATMENT OF BONE DISORDERS
申请人:BOUILLON Roger
公开号:US20080032955A1
公开(公告)日:2008-02-07
Novel vitamin D analogues are useful for making pharmaceutical compositions for the prevention or treatment of bone disorders such as osteoporosis
新型维生素D类似物非常适用于制作预防或治疗骨质疏松等骨骼疾病的药物组合物。
[EN] VITAMIN D3 ANALOGUES FOR THE PREVENTION AND TREATMENT OF BONE DISORDERS<br/>[FR] ANALOGUES DE LA VITAMINE D3 POUR LA PREVENTION ET POUR LE TRAITEMENT DE TROUBLES OSSEUX