142994-05-6Relevant articles and documents
Synthesis method of 2-methylsulfonyl-4-trifluoromethyl benzoic acid
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Paragraph 0034-0036; 0038-0040, (2020/12/14)
The invention belongs to the field of preparation of pesticide intermediates, and particularly relates to a synthesis method of an intermediate 2-methylsulfonyl-4-trifluoromethyl benzoic acid for preparing important pesticides such as sulfonyl pyrazole an
CARBOCYCLIC GLYT1 RECEPTOR ANTAGONISTS
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Page/Page column 23, (2011/04/14)
The present invention relates to the use of a compound of general formula (I) wherein R1/R2 are independently from each other hydrogen, lower alkyl, -CH2)o-cycloalkyl for o being 0 or 1, or are benzyl or heterocycloalkyl; or R1 and R2 are together with the N-atom to which they are attached a ring containing -(CH2)3-, -(CH2)4-, -(CH2)5-, -(CH2)2-O-(CH2)2-, -(CH2)2-S-(CH2)2-, -(CH2)2-NR-(CH2)2-, -(CH2)2-C(O)-(CH2)2-, -(CH2)2-CF2-(CH2)2-, -CH2-CHR-(CH2)2, -CHR-(CH2)3, CHR-(CH2)2-CHR-, or is the ring 2,6-diaza-spiro[3.3]heptane-2-carboxylic acid tert-butyl ester and R is hydroxy, halogen, cycloalkyl, or C(O)O-lower alkyl; X is -(CH2)4-, -(CH2)3-, -(CH2)2- or -CH2-; R3 is S-lower alkyl, CF3, OCHF2, lower alkoxy, lower alkyl, phenyl, cycloalkyl or halogen; R4 is CF3, lower alkoxy, lower alkyl, halogen and n is 1 or 2; or to a pharmaceutically acceptable acid addition salt, to a racemic mixture, or to its corresponding enantiomers and/or optical isomers thereof for the manufacture of a medicament for the treatment of psychoses, pain, dysfunction in memory and learning, attention deficit, schizophrenia, dementia disorders or Alzheimer's disease.
PROCESS FOR THE PREPARATION OF 2-ALKYLTHIO BENZOIC ACID DERIVATIVES
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, (2008/06/13)
A process for preparing a compound of the formula comprising reacting a compound of the formula wherein R3 is nitro or halo, or a salt thereof, with a compound of the formula R1SX (III) wherein X is hydrogen or alkali metal.