Abstract:
An acyclic fluorinated compound of formula (I) is amine -containing acyclic hydrofluoroethers. The acyclic fluorinated compound is useful as heat transfer, solvent cleaning, fire extinguishing agents and electrolyte solvents and additives.
Abstract:
The present invention relates to a process for preparation of Abediterol of the Formula (I) or its pharmaceutically acceptable salts, and intermediate compounds including the compound of the Formula (VII) by chiral sulfide mediated epoxidation. The process involves preparation of the intermediate compounds followed by preparation of Abediterol from the intermediate compounds. The compound Abediterol having the formula I is synthesized by various routes from the intermediate compound of Formula (VII). The process is cost effective and gives higher yield and better purity. The process of the present invention uses simple raw materials and reagents; and does not use hypertoxic materials.
Abstract:
The present invention provides a compound of formula (I) wherein: R 1 is a group selected from -CH 2 OH, -NHC(O)H and R 2 is a hydrogen atom; or R 1 together with R 2 form the group -NH-C(O)-CH=CH- wherein the nitrogen atom is bound to the carbon atom in the phenyl ring holding R 1 and the carbon atom is bound to the carbon atom in the phenyl ring holding R 2 ; R 3 is selected from hydrogen and halogen atoms or groups selected from -SO-R 5 , -SO 2 - R 5 , -NH-CO-NH 2 , -CO-NH 2 , hydantoino, C 1-4 alkyl, C 1-4 alkoxy and -SO 2 NR 5 R 6 ; R 4 is selected from hydrogen atoms, halogen atoms and C 1-4 alkyl groups; R 5 is a C 1-4 alkyl group or C 3-8 cycloalkyl; R 6 is independently selected from hydrogen atoms and C 1-4 alkyl groups; n, p and q are independently 0, 1 , 2, 3 or 4; m and s are independently 0, 1 , 2 or 3; r is 0, 1 or 2; with the provisos that: at least one of m and r is not 0; the sum n+m+p+q+r+s is 7, 8, 9, 10, 11 , 12 or 13; the sum q+r+s is 2, 3, 4, 5 or 6 or a pharmaceutically-acceptable salt, solvate or stereoisomer thereof.
Abstract translation:本发明提供式(I)化合物,其中:R 1是选自-CH 2 OH,-NHC(O)H和R“ 2是氢原子; 或R 1与R 2一起形成基团-NH-C(O)-CH = CH-,其中氮原子与苯环中的碳原子结合 保持R 1,并且碳原子与保持R 2的苯基中的碳原子结合; R 3选自氢和选自-SO-R 5,-SO 2 R 5的卤素原子或基团, ,-NH-CO-NH 2,-CO-NH 2,乙酰氧基,C 1-4烷基,C 1-4烷氧基和-SO 2 NR 5 R 6; R 4选自氢原子,卤素原子和C 1-4烷基; R 5是C 1-4烷基或C 3-8环烷基; R 6独立地选自氢原子和C 1-4烷基; n,p和q独立地为0,1,2,3或4; m和s独立地为0,1,2或3; r为0,1或2; 条件是:m和r中的至少一个不为0; 和n + m + p + q + r + s为7,8,9,10,11,12或13; 和q + r + s为2,3,4,5或6或其药学上可接受的盐,溶剂合物或立体异构体。
Abstract:
Nitrones are produced by reaction of primary amine with aldehyde or ketone, in the presence of a transition metal-containing oxidation catalyst, and a peroxidic compound. The nitrone can then be reacted with a vinylaromatic compound to produce a 2-hydrocarbyl-5-arylisoxazolidine. Both such reactions can be conducted concurrently by including the vinylaromatic compound in the initial reaction mixture. Hydrogenation of the 2-hydrocarbyl-5-arylisoxazolidine, e.g., using hydrogen and a palladium-carbon catalyst, forms an N-hydrocarbyl-3-aryl-3-hydroxypropylamine. Such reactions enable, inter alia, synthesis of the racemic hydrochloride salt of N-methyl-3-phenyl-3-[4-trifluoromethyl]-propylamine, known generically as fluoxetine hydrochloride, a widely used antidepressant.