78472-00-1

Usage

Chemical Class

Organosulfonamides

Derivative

Propanesulfonamide with a chlorine atom attached to the nitrogen and two methyl groups

Usage

Intermediate in the synthesis of pharmaceuticals and agrochemicals, reagent in organic synthesis, potential applications in the production of dyes and specialty chemicals

Importance

Diverse uses in various industrial and research applications as a chemical building block

Upstream product

• 1633-82-5 3-chloro-n-propanesulfonyl chloride 
• 124-40-3 dimethyl amine 
• 506-59-2 N,N-dimethylammonium chloride 

Downstream Products

• 432023-77-3 3-(3-(2,3-Dichlorobenzoyl)-7-ethyl-2-methyl-1H-indol-1-yl)-N,N-dimethyl-1-propanesulphonamide 
• 146475-54-9 N,N-dimethylcyclopropanesulfonamide 

Relevant academic research and scientific papers

Pharmaceutical compositions (by machine translation)

[Problem] imidazole compound or its pharmacologically acceptable salt in the melanocortin receptor activity that operates as an active ingredient of a pharmaceutical composition comprising. "I" general formula [a]" Formula, the aryl group may be substituted A ring represents a; R1 Represents a hydrogen atom, or an alkyl group which may be substituted represented; R2 Represents a hydrogen atom, a halogen atom or represents a; R3 The alkyl group may be substituted " represented by the imidazole compound, its pharmacologically acceptable salt as an active ingredient in a pharmaceutical composition. [Drawing] no (by machine translation)

NOVEL IMIDAZOLE COMPOUND AND USE THEREOF AS MELANOCORTIN RECEPTOR AGONIST

The present invention relates to a novel imidazole compound or a pharmaceutically acceptable salt thereof having a melanocortin receptor agonistic activity, and medical use thereof. The present invention relates to an imidazole compound represented by general formula [I] [wherein: Ring A represents an optionally substituted aryl group or the like; R1 represents a hydrogen atom, an optionally substituted alkyl group, or the like; R2 represents a hydrogen atom, a halogen atom, or the like; and R3 represents an optionally substituted alkyl group] or a pharmaceutically acceptable salt thereof.

NOVEL COMPOUNDS

Compounds of formula (I) defined herein exhibit human neutrophil elastase inhibitory properties and are useful for treating diseases and conditions in which HNE is implicated.

NOVEL COMPOUNDS

This invention relates to heterocyclic compounds, which are pyrimidinone derivatives having human neutrophil elastase inhibitory properties, and their use in therapy.

3-Arylindole derivatives and their use as cb2 receptor agonists

A subject-matter of the present invention is compounds of formula: and their preparation and the pharmaceutical compositions comprising them. These compounds are agonists for CB2 cannabinoid receptors.

Synthetic studies on condensed-azole derivatives. I. Synthesis and anti- asthmatic activities of ω-substituted alkylthioimidazo[1,2-b]pyridazines

A series of novel ω-substituted alkylthioimidazo[1,2-b]pyridazines was designed and synthesized in an effort to find a novel anti-asthmatic agent. The anti-asthmatic activity of these compounds was evaluated on the basis of their ability to inhibit thromboxane A2 synthetase and platelet activating factor (PAF)-induced bronchoconstriction in guinea pigs. None of these compounds significantly inhibited thromboxane A2 synthetase, though, sulfonamide derivatives potently inhibited PAF-induced bronchoconstriction. Among them, 3-(imidazo[1,2-b]pyridazin-6-yl)thiopropanesulfonamide (5) showed the most potent inhibitory effect. The anti-asthmatic effects of compound 5 in experimental models were superior to those of theophylline.

Cyclopropanesulfonyl Chloride: Its Mechanism of Hydrolysis and Reactions with Tertiary Amines in Organic Media

Cyclopropanesulfonyl chloride (1) has been synthesized and its reactions examined to see if the three-membered ring leads to unusual reactions in either 1 or the corresponding sulfene, cyclopropanethione S,S-dioxide (2). pH-rate profiles, primary kinetic isotope effects (KIE's), and pH-product ratio experiments are in full agreement with mechanisms of hydrolysis of 1 like those of a simple alkanesulfonyl chlorides (J.Am.Chem.Soc.1992,114,1743-1749), specifically, (a) below pH 7.2 by SN2-S reaction with water and (b) above pH 7.3, elimination by hydroxide to form the sulfene (2) which is trapped by (i) water below pH 12.0 and (ii) hydroxide above pH 12.0.The products of the reaction of cyclopropanesulfonyl-1-d chloride (9) with triethylamine and 2-propanol in dichloromethane indicate that most of the reaction goes via 2; the analogous reaction with trimethylamine apparently proceeds by a direct formation of the sulfonylammonium chloride (14) which then yields the α-deuterated N,N-dimethyl sulfonamide (12, R=Me).The evident sulfene formation processes in the reaction of triethylamine with ethenesulfonyl, 2-propanesulfonyl, and cyclopropanesulfonyl chlorides show very low primary KIE's (1.5), pointing to highly product-like transition states.Reaction of 1 with an enamine (1-pyrrolidino-2-methylpropene, 20) in the presence of a base in either water or dichloromethane gave cyclopropanesulfonpyrrolidide (23) and an aldehyde adduct (24), but no four-membered cycloadduct (21).