78281-60-4Relevant academic research and scientific papers
Development and a practical synthesis of nepafenac intermediate via modified gassman reaction
Cybulski, Marcin,Formela, Adam,Mucha, Mariola,Klos, Karolina,Roszczynski, Jacek,Winiarski, Jerzy
, p. 461 - 464,4 (2012)
Modification of nepafenac intermediate synthesis (5A) via Gassman specific ortho-substitution is reported. According to the process, 2-aminobenzophenone (1A) and 2-(methylthio)acetamide (2) were reacted in the convenient temperature conditions, in the presence of N-chlorophthalimide (3) or 1,3-dichloro-5,5- dimethylhydantoin (4), to activate the formation of azasulfonium salt and rearrangement thereof to pure 2-amino-3-benzoyl-α-(methylthio) phenylacetamide (5A). The procedure appears to be suitable for a reaction carried out in a large scale.
Process For Preparing A Benzoylbenzeneacetamide Derivative
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Page/Page column 4-5, (2009/12/27)
Disclosed is a process for preparing anti-inflammatory compound nepafenac comprising preparing a compound of formula (V) wherein a N-halosuccinimide is used as the halogenating agent, followed by desulfurization using Raney Nickel. Also disclosed is a polymorphic form B of 2-amino-3-benzoyl-α-(methylthio)-benzeneacetamide (i.e., a compound of formula (V) wherein R is methyl
Topically administrable compositions containing 3-benzoylphenylacetic acid derivatives for treatment of ophthalmic inflammatory disorders
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, (2008/06/13)
Novel ester and amide derivatives of 3-benzoylphenylacetic acid are disclosed. The use of these novel derivatives and certain known derivatives in topically administrable compositions for the treatment of ophthalmic inflammatory disorders is also disclosed.
