207516-58-3

Upstream product

• 357-60-8 4,4'-difluoro-benzilic acid 
• 74-88-4 methyl iodide 
• 67-56-1 methanol 

Relevant academic research and scientific papers

MEDICAMENTS FOR INHALATION COMPRISING ANTICHOLINERGICS AND A BETAMIMETIC

The present invention relates to novel pharmaceutical compositions comprising one or more, preferably one anticholinergic 1 and a betamimetic of formula 2 processes for preparing them and their use in the treatment of respiratory complaints.

Medicaments for inhalation comprising an anticholinergic and a betamimetic

A pharmaceutical composition comprising an anticholinergic and a betamimetic of formula 2 optionally together with a pharmaceutically acceptable excipient, the anticholinergic and the betamimetic optionally in the form of their enantiomers, mixtures of their enantiomers, their racemates, their solvates, or their hydrates, processes for preparing them, and their use in the treatment of asthma, COPD, or other inflammatory or obstructive respiratory complaints.

Anticholinergics, processes for the preparation thereof, and pharmaceutical compositions

A compound of formula 1 wherein: X? is an anion with a single negative charge; A and B, which are identical or different, are each —O—, —S—, —NH—, —CH2—, —CH═CH—, or —N(C1-C4-alkyl)-; R is hydrogen, hydroxy, —C1-C4-alkyl, —C1-C4-alkyloxy, —C1-C4-alkylene-halogen, —O—C1-C4-alkylene-halogen, —C1-C4-alkylene-OH, —CF3, —CHF2, —C1-C4-alkylene-C1-C4-alkyloxy, —O—COC1-C4-alkyl, —O—COC1-C4-alkylene-halogen, —C1-C4-alkylene-C3-C6-cycloalkyl, —O—COCF3, or halogen; R1 and R2, which are identical or different, are each —C1-C5-alkyl, which is optionally substituted by —C3-C6-cycloalkyl, hydroxy, or halogen, or R1 and R2 together are a —C3-C5-alkylene bridge; R3, R4, R3′, and R4′, which are identical or different, are each hydrogen, C1-C4-alkyl, C1-C4-alkyloxy, hydroxy, —CF3, —CHF2, —CN, —NO2, or halogen; Rx and Rx′, which are identical or different, are each hydrogen, C1-C4-alkyl, C1-C4-alkyloxy, hydroxy, —CF3, —CHF2, —CN, —NO2, or halogen, or Rx and Rx′ together are a single bond or a bridging group selected from —O—, —S—, —NH—, —CH2—, —CH2—CH2—, —N(C1-C4-alkyl)-, —CH(C1-C4-alkyl)-, and —C(C1-C4-alkyl)2-, or a pharmacologically acceptable acid addition salt thereof, processes for preparing, them and their use in pharmaceutical compositions.

Anticholinergics which may be used as medicaments as well as processes for preparing them

The present invention relates to new anticholinergics of general formula 1 wherein A, X ? and the groups R1, R2, R3, R4, R5, R6 and R7 may have the meanings given in the claims and in the specification, processes for preparing them and their use as pharamaceutical compositions.

Superacid-catalyzed electrocyclization of diphenylmethyl cations to fluorenes. Kinetic and theoretical revisit supporting the involvement of ethylene dications

In superacid media, diphenylmethyl cations bearing an α-carbonyl group generate fluorene compounds. We have obtained chemical evidence showing the acidity dependence of this fluorene cyclization process. A linear relationship was found between the rate of