Direct Methylation of Primary and Secondary Alcohols by Trimethyl Phosphate to Prepare Pure Alkyl Methyl Ethers.
摘要:
Primary and secondary alcohols and diols react autocatalytically with trimethyl phosphate plus small amounts of polyphosphoric acid at 185 degrees C to give the corresponding methyl ethers. High purity and good yields are achieved when the ether is distilled from the reaction mixture as it is formed. By controlled addition even low-boiling alcohols can be methylated successfully. The reaction mechanism is undetermined. Peroxide formation in ethers is inhibited by storage over 10 molal KOH. Pure isotropic optical crystals are used for refractometer calibration. Improved physical property and NMR data (H-1 and C-13) are reported for thirteen methyl ethers. Simple two-point linear extrapolation of NMR shifts (especially C-13) to infinite dilution produces highly reproducible delta degrees-values (to 0.01 ppm or better) which uniquely characterize a molecule even when unidentified and/or not isolated from a mixture. This capability appears not to have been recognized in the literature.
Compositions for Treatment of Cystic Fibrosis and Other Chronic Diseases
申请人:Vertex Pharmaceuticals Incorporated
公开号:US20150231142A1
公开(公告)日:2015-08-20
The present invention relates to pharmaceutical compositions comprising an inhibitor of epithelial sodium channel activity in combination with at least one ABC Transporter modulator compound of Formula A, Formula B, Formula C, or Formula D. The invention also relates to pharmaceutical formulations thereof, and to methods of using such compositions in the treatment of CFTR mediated diseases, particularly cystic fibrosis using the pharmaceutical combination compositions.
[EN] 2-(1H-INDOLE-3-CARBONYL)-THIAZOLE-4-CARBOXAMIDE DERIVATIVES AND RELATED COMPOUNDS AS ARYL HYDROCARBON RECEPTOR (AHR) AGONISTS FOR THE TREATMENT OF E.G. ANGIOGENESIS IMPLICATED OR INFLAMMATORY DISORDERS<br/>[FR] DÉRIVÉS DE 2-(1H-INDOLE-3-CARBONYL)-THIAZOLE-4-CARBOXAMIDE ET COMPOSÉS CORRESPONDANTS UTILISÉS EN TANQUE QUE AGONISTES DU RÉCEPTEUR D'HYDROCARBURE ARYLE (AHR) UTILISÉS POUR LE TRAITEMENT DE, P.EX., DE L'ANGIOGENÈSE IMPLIQUÉE OU DE TROUBLES INFLAMMATOIRES
申请人:IKENA ONCOLOGY INC
公开号:WO2021127302A1
公开(公告)日:2021-06-24
2-(1H-lndole-3-carbonyl)-thiazole-4-carboxamide derivatives and the corresponding imidazole, oxazole and thiophene derivatives and related compounds as aryl hydrocarbon receptor (AHR) agonists for the treatment of angiogenesis implicated disorders, such as e.g. retinopathy, psoriasis, rheumatoid arthritis, obesity and cancer, or inflammatory disorders. The present description discloses the synthesis and characterisation of exemplary compounds as well as pharmacological data thereof (e.g. pages 27 to 32 and 59 to 219; examples 1 to 8; compounds 1-1 to 1-97; tables 1-a, 2 and 3).
DIAZABICYCLO[4.3.1]DECANE DERIVATIVES FOR TREATMENT OF PSYCHIATRIC DISORDERS
申请人:MAX-PLANCK-GESELLSCHAFT ZUR FÖRDERUNG DER WISSENSCHAFTEN E.V.
公开号:US20170002003A1
公开(公告)日:2017-01-05
The present invention relates to diazabicyclo[4.3.1]decane derivatives, pharmaceutically acceptable salts of these compounds and pharmaceutical compositions containing at least one of these compounds together with pharmaceutically acceptable carrier, excipient and/or diluents. Said diazabicyclo[4.3.1]decane derivatives can be used for prophylaxis and/or treatment of psychiatric disorders and neurodegenerative diseases, disorders and conditions.
COMPOSITIONS FOR TREATMENT OF CYSTIC FIBROSIS AND OTHER CHRONIC DISEASES
申请人:Van Goor Fredrick F.
公开号:US20110098311A1
公开(公告)日:2011-04-28
The present invention relates to pharmaceutical compositions comprising an inhibitor of epithelial sodium channel activity in combination with at least one ABC Transporter modulator compound of Formula A, Formula B, Formula C, or Formula D. The invention also relates to pharmaceutical formulations thereof, and to methods of using such compositions in the treatment of CFTR mediated diseases, particularly cystic fibrosis using the pharmaceutical combination compositions.
COMBINATION THERAPY OF A HIF-2-ALPHA INHIBITOR AND AN IMMUNOTHERAPEUTIC AGENT AND USES THEREOF
申请人:PELOTON THERAPEUTICS, INC.
公开号:US20180140569A1
公开(公告)日:2018-05-24
The present invention provides methods and pharmaceutical compositions for treating proliferative disorders. The method involves step of administering to said subject a HIF-2alpha inhibitor and an immunotherapeutic agent.