53657-94-6Relevant articles and documents
Atropisomeric Properties of 9-Methyl-1,4-benzodiazepin-2-ones
Tanaka, Ryoko,Makino, Kosho,Tabata, Hidetsugu,Oshitari, Tetsuta,Natsugari, Hideaki,Takahashi, Hideyo
, p. 4682 - 4688 (2021/09/08)
The atropisomeric and conformational properties of 1,4-benzodiazepin-2-ones were investigated by freezing the conformation with a methyl group at the C9 of 1,4-benzodiazepine. It was revealed that 1,4-benzodiazepin-2-ones exist only as a pair of enantiome
COMPOUNDS
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Page/Page column 38, (2018/12/03)
Provided are benzoxazolinone sulfonamide derivatives that inhibit Na v1.7 activity, pharmaceutical compositions containing them and their use in therapy for the treatment of diseases mediated by Na v1.7 activity.
Preparation of an N-sec-alkyl 2,6-disubstituted aniline: a key intermediate in the divergent synthesis of S-Metolachlor metabolites
Tyagi, Sameer,Gichinga, Moses G.,Cook, Christopher D.,Key, Jeffrey A.,McKillican, Bruce P.,Eberle, William J.,Carlin, Timothy J.,Hunt, David A.,Dowling, Alan J.
, p. 5363 - 5367 (2016/11/16)
A simple method to prepare a 2,6-disubstituted aniline containing a N-sec-alkyl group and a carbonyl on one ortho substituent is reported. This method was used to accomplish the first synthesis of side chain oxidized ethylsulfonic acid (ESA) and oxanilic acid (OXA) metabolites of S-Metolachlor (S-Moc) herbicide. The 2,6-disubstituted aniline functionality was installed by a Sugasawa reaction of readily available ortho-toluidine. The N-sec alkyl group was introduced by a Mitsunobu alkylation of the nosyl-activated 2-acetyl-6-methyl-substituted aniline. This crucial step enabled access to the key 2,6-disubstituted aniline intermediate which was used in the divergent synthesis of S-Moc metabolites. A bioinspired synthesis of the keto-ESA metabolite was achieved in one step from the hydroxyl-ESA metabolite using a ruthenium-catalyzed oxidation.[Figure presented]