摘要:
The present invention relates to a new process for the preparation of NO-donating compounds using a sulfonated intermediate. The invention relates to new intermediates prepared therein suitable for large scale manufacturing of NO-donating compounds. The invention further relates to the use of the new intermediates for the manufacturing of pharmaceutically active NO-donating compounds. The invention further relates to a substantially crystalline form of NO-donating NSAIDs, especially 2-[2-(nitrooxy)ethoxy]ethyl {2-[(2,6-dichlorophenyl)amino]phenyl}acetate, the preparation thereof and to pharmaceutical formulations containing said crystalline form and to the use of said crystalline form in the preparation of a medicament.
摘要:
At the present invention relates to a new process for the preparation of the (S)-naproxen 4-nitrooxybutyl ester and to new intermediates obtained and used therein. The invention further relates to the use of the new intermediates for the manufacturing of pharmaceutically active compounds such as (S)-naproxen 4-nitrooxybutyl ester. The invention also relates to the use of (S)-naproxen 4-nitrooxybutyl ester prepared according to the process of the present invention for the manufacturing of a medicament for the treatment of pain.
摘要:
The present invention relates to a process for the preparation of gabapentin and, more in particular, to a method of synthesis of 1,1-cyclohexane acetic acid monoamide, an intermediate used in the preparation of gabapentin, comprising the basic hydrolysis reaction of α, -diaminocarbonyl-β,β-pentamethylene glutarimide.
摘要:
A compound of formula (II), wherein R1 is chloro, fluoro or trifluoromethyl; R2 is hydrogen, chloro, fluoro or trifluoromethyl; and R is hydrogen or a protective group for the hydroxy moiety useful as an intermediate for the synthesis of antimycotic azole compounnds.
摘要:
A process for the nitration of conjugated alkenes of formula (I) wherein R, R1, R2, R3 and R4 have the meanings reported in the description, which allows to obtain the corresponding β-nitro-alkenes, characterised in that the nitrating agent is a mixture of an inorganic nitrite and iodine in the presence of an oxidising agent is described.
摘要:
Process for the preparation of a compound of formula (VII) wherein R1 is Cl, F or CF3; R2 is H, Cl, F or CF3; and R3 is C1-4 alkyl; characterized in that an olefin of formula (II) is epoxidized to give an oxirane of formula (III) which treated with alkyl-magnesium halide gives a triol of formula (IV) which is turned into an epoxide of formula (V), then treated with 1,2,4-triazole. The compounds (VII) are useful for preparing azole derivatives active as antifungal agent.
摘要:
A method for the removal of heavy metals from solutions of organic compounds by treatment with cysteine or with an N-acylcysteine is described. Organic compounds with a content of heavy metal, for example palladium, particularly low and suitable for the preparation of compounds with pharmacologic activity can be isolated from the resultant solutions.
摘要:
The present invention relates to a process for the preparation of gabapentin and, more in particular, to a method of synthesis of 1,1-cyclohexane acetic acid monoamide, an intermediate used in the preparation of gabapentin, comprising the basic hydrolysis reaction of α,−-diaminocarbonyl-β,β-pentamethylene glutarimide.
摘要:
The present invention relates to an improved process for the preparation of gabapentin and, more particularly, to an improvement of the preparation reaction of 1,1-cyclohexanediacetic acid monoamide, intermediate utilized in the preparation of gabapentin.
摘要:
A handle assembly for a door or window comprises a handle and a second element, installable on opposite sides of the door or window, and a pin element rotatable around a pin rotation axis and insertable into the handle or in the second element at variable depths. The handle assembly further comprises a friction reducing group positioned coaxially to the pin element and positionable between the handle and the door or window in the axial direction of the pin rotation axis. Clamping devices constrain the handle and/or the second element on the pin element at adjustable distances along the axial direction according to the thickness of the door or window, so that when the handle assembly is installed on the door or window, an axial clamping pressure of the handle and of the second element is maintained on the respective side of the door or window. An installation method of the handle assembly on the door or window is also provided.