Stereospecific synthesis of chiral tertiary alkyl-aryl ethers via Mitsunobu reaction with complete inversion of configuration
作者:Yao-Jun Shi、David L. Hughes、James M. McNamara
DOI:10.1016/s0040-4039(03)00728-7
日期:2003.4
Mitsunobu reaction of chiral tertiary alcohol (S)-2 with phenol3 provides the desired ether (R)-1 in moderate yields at elevated temperatures (80–100°C). The SN2 displacement pathway is evident by complete inversion of the (S)-alcohol to (R)-ether.
手性叔醇(S)-2与苯酚3的Mitsunobu反应在高温(80-100°C)下以中等收率提供所需的醚(R)-1。通过将(S)-醇完全转化为(R)-醚,可以明显看出S N 2的置换途径。
HYDROXYTRIAZINE COMPOUND AND MEDICAL USE THEREOF
申请人:Japan Tobacco, Inc.
公开号:EP3339296A1
公开(公告)日:2018-06-27
The present invention provides a compound having an mPGES-1 inhibitory activity and useful for the prophylaxis or treatment of pain, rheumatism, osteoarthritis, fever, Alzheimer's disease, multiple sclerosis, arteriosclerosis, glaucoma, ocular hypertension, ischemic retinal disease, systemic scleroderma and/or cancer including colorectal cancer.
The present invention relates to a compound of formula [I-a], [I-b] or [I-c] or a pharmaceutically acceptable salt thereof:
wherein each symbol is as defined in the specification.