Enantioselective total synthesis of (R)-strongylodiols A and B
作者:Stefan Reber、Thomas F Knöpfel、Erick M Carreira
DOI:10.1016/s0040-4020(03)00905-0
日期:2003.8
We describe an expeditious enantioselective total synthesis of the acetylenic marine natural products (R)-strongylodiols A and B. Central to the strategy is the use of Zn(OTf)2, amine base, and N-methyl ephedrine to mediate the direct addition of a 1,3-diyne to two long-chain aliphatic aldehydes in useful selectivities and yields.
Natural acetylenes. Part XL. Syntheses of polyacetylenic C18 and C16 esters with 9-ene-12,14-diyne unsaturation, and their labelling
作者:Alexander G. Fallis、Milton T. W. Hearn、Ewart R. H. Jones、Viktor Thaller、John L. Turner
DOI:10.1039/p19730000743
日期:——
The esters R[CC]2·CH2CH[graphics omitted]CH·[CH2]7·CO2MeR = Me[CH2]2, MeCC, cis- or trans-MeCHCH, trans-HO·CH2·CHCH, HO·CH2·CC, cis- or trans-MeO2C·CHCH, MeO2C·CC, (EtO)2CH, OHC, or, H2N·OC} were prepared from the Wittig salt Me3Si·CC·CH2·CH2·PPh3I–via ICC·CH2·CH[graphics omitted]CH·[CH2]7·CO2Me; several were specifically labelled [at C(9), C(17), and C(18)]. The Wittig salt offers a general route
Studies towards the synthesis of trocheliophorolides
作者:Navnath B. Khomane、Harshadas M. Meshram、Haridas B. Rode
DOI:10.1016/j.tetlet.2018.04.045
日期:2018.5
Total synthesis of trocheliophorolide C epimer is reported. The synthetic strategy involves generation of lactone skeleton and preparation of unsaturated side chain followed by cross-metathesis. The Eglinton oxidative coupling, Cadiot-Chodkiewicz cross-coupling and cross-metathesis are the key reactions used in the synthesis. We also attempted the synthesis of trocheliophorolide D epimer, which includes
Synthesis of biaryls using nickel-catalyzed [2+2+2] cocyclization
作者:Yoshihiro Sato、Kenji Ohashi、Miwako Mori
DOI:10.1016/s0040-4039(99)00945-4
日期:1999.7
Methods of synthesizing biaryls using nickel-catalyzed [2+2+2] cocyclization were developed. Two ways for the synthesis of biaryl using [2+2+2] cocyclization were investigated: one method is that biaryls synthesized from alkyne having a phenyl group and 2 equivalents of acetylene, and the other method is that those were synthesized from α,ω-diyne having a phenyl group at an α-position and acetylene
[EN] RET INHIBITORS, PHARMACEUTICAL COMPOSITIONS AND USES THEREOF<br/>[FR] INHIBITEURS DE RET, COMPOSITIONS PHARMACEUTIQUES ET UTILISATIONS ASSOCIÉES
申请人:SUNSHINE LAKE PHARMA CO LTD
公开号:WO2020114487A1
公开(公告)日:2020-06-11
Provided herein are a RET inhibitor, a pharmaceutical composition thereof and uses thereof. In particular, provided is a compound having Formula (I) or a stereoisomer, a geometric isomer, a tautomer, an N-oxide, a solvate, a metabolite, a pharmaceutically acceptable salt or a prodrug thereof. Provided is a pharmaceutical composition comprising the compound, and uses of the compound and pharmaceutical composition thereof for the preparation of a medicament, in particular for treatment and prevention of RET-related diseases and conditions, including cancer, irritable bowel syndrome, and/or pain associated with irritable bowel syndrome.