- Crystal structures of pyridine sulfonamides and sulfonic acids
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Despite the widespread occurrence of pyridinesulfonic acid and pyridinesulfonamide functional groups in drugs and pharmaceuticals, and their use as ligands in metal-organic frameworks, a systematic structural study of their hydrogen bonding and molecular packing is lacking. We discuss crystal structures of 2-, 3-, and 4-pyridinesulfonic acids/amides in terms of N +-H???O- hydrogen bonds, N-H???O dimer/catemer synthons, and graph set notations. This model study provides a background for polymorph screening and solid form hunting of pharmacologically active sulfonamides.
- Akiri, Kalyanachakravarthi,Cherukuvada, Suryanarayan,Rana, Soumendra,Nangia, Ashwini
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Read Online
- 2-AMINO-N-(AMINO-OXO-ARYL-LAMBDA6-SULFANYLIDENE)ACETAMIDE COMPOUNDS AND THEIR THERAPEUTIC USE
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The present invention pertains generally to the field of therapeutic compounds. More specifically the present invention pertains to certain 2-amino-N-(amino-oxo-aryl-λ6- sulfanylidene)acetamide compounds (referred to herein as ANASIA compounds) that, inter alia, inhibit (e.g., selectively inhibit) bacterial aminoacyl-tRNA synthetase (aaRS) (e.g., bacterial leucyl-tRNA synthetase, LeuRS). The present invention also pertains to pharmaceutical compositions comprising such compounds, and the use of such compounds and compositions, both in vitro and in vivo, to inhibit (e.g., selectively inhibit) bacterial aminoacyl-tRNA synthetase; to treat disorders that are ameliorated by the inhibition (e.g., selective inhibition) of bacterial aminoacyl-tRNA synthetase; to treat bacterial infections; etc.
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Page/Page column 206
(2021/06/26)
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- Desulfonative Suzuki–Miyaura Coupling of Sulfonyl Fluorides
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Sulfonyl fluorides have emerged as powerful “click” electrophiles to access sulfonylated derivatives. Yet, they are relatively inert towards C?C bond forming transformations, notably under transition-metal catalysis. Here, we describe conditions under which aryl sulfonyl fluorides act as electrophiles for the Pd-catalyzed Suzuki–Miyaura cross-coupling. This desulfonative cross-coupling occurs selectively in the absence of base and, unusually, even in the presence of strong acids. Divergent one-step syntheses of two analogues of bioactive compounds showcase the expanded reactivity of sulfonyl fluorides to encompass both S?Nu and C?C bond formation. Mechanistic experiments and DFT calculations suggest oxidative addition occurs at the C?S bond followed by desulfonation to form a Pd-F intermediate that facilitates transmetalation.
- Bahadori, Maryam,Brykczyńska, Daria,Chatelain, Paul,Moran, Joseph,Muller, Cyprien,Rowley, Christopher N.,Sau, Abhijit
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supporting information
p. 25307 - 25312
(2021/10/25)
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- HEPATITIS B VIRAL ASSEMBLY EFFECTORS
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Novel assembly effector compounds having a therapeutic effect against hepatitis B viral (HBV) infection are disclosed. Assembly effector molecules described herein can lead to defective viral assembly and also may affect other viral activities associated with chronic HBV infection. Also disclosed is a process to synthesize disclosed compounds, method of treatment of HBV by administration of disclosed compounds, and use of these compounds in the manufacture of medicaments against HBV.
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Paragraph 00207
(2016/10/31)
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- SULFONAMIDE DERIVATIVE AND MEDICINAL USE THEREOF
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Provided are sulfonamide derivatives of a specific chemical structure in which a sulfonamide group having, as a substituent, a phenyl group or a heterocyclic group having a hetero atom(s) as a constituent element(s) is present at its terminal, and pharmaceutically acceptable salts thereof. These compounds are novel compounds having excellent α4 integrin-inhibitory action.
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Paragraph 0838
(2015/02/25)
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- PIPERIDINYL NAPHTHYLACETIC ACIDS
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The invention is concerned with the compounds of formula (I): and pharmaceutically acceptable salts thereof, wherein R1, R2, R3 and X are defined in the detailed description and claims. In addition, the present invention relates to methods of manufacturing and using the compounds of formula I as well as pharmaceutical compositions containing such compounds. The compounds of formula I are antagonists or partial agonists at the CRTH2 receptor and may be useful in treating diseases and disorders associated with that receptor such as asthma.
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Paragraph 0198
(2013/06/27)
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- Design and in vitro activities of N -alkyl- N -[(8- R -2,2-dimethyl-2 H -chromen-6-yl)methyl]heteroarylsulfonamides, novel, small-molecule hypoxia inducible factor-1 pathway inhibitors and anticancer agents
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The hypoxia inducible factor (HIF) pathway is an attractive target for cancer, as it controls tumor adaptation to growth under hypoxia and mediates chemotherapy and radiation resistance. We previously discovered 3,4-dimethoxy-N-[(2,2-dimethyl-2H-chromen-6-yl)methyl]-N- phenylbenzenesulfonamide as a novel, small-molecule HIF-1 pathway inhibitor in a high-throughput cell-based assay, but its in vivo delivery is hampered by poor aqueous solubility (0.009 μM in water; log P7.4 = 3.7). Here we describe the synthesis of 12 N-alkyl-N-[(8-R-2,2-dimethyl-2H-chromen-6-yl) methyl]heteroarylsulfonamides, which were designed to possess optimal lipophilicities and aqueous solubilities by in silico calculations. Experimental log P7.4 values of 8 of the 12 new analogs ranged from 1.2-3.1. Aqueous solubilities of three analogs were measured, among which the most soluble N-[(8-methoxy-2,2-dimethyl-2H-chromen-6-yl)methyl]-N-(propan-2-yl) pyridine-2-sulfonamide had an aqueous solubility of 80 μM, e.g., a solubility improvement of ～9000-fold. The pharmacological optimization had limited impact on drug efficacy as the compounds retained IC50 values at or below 5 μM in our HIF-dependent reporter assay.
- Mun, Jiyoung,Jabbar, Adnan Abdul,Devi, Narra Sarojini,Yin, Shaoman,Wang, Yingzhe,Tan, Chalet,Culver, Deborah,Snyder, James P.,Van Meir, Erwin G.,Goodman, Mark M.
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experimental part
p. 6738 - 6750
(2012/09/25)
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- Efficient and scalable synthesis of pyridine sulfonamides
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Short-step and scalable transformations from 2,6-dibromopyridine to 6-bromopyridine-2-sulfonamide by means of halogen-metal exchange and subsequent reaction with sulfuryl chloride followed by amidation are established. Application of the method for the synthesis of various pyridine sulfonamides is also described. Georg Thieme Verlag Stuttgart - New York.
- Emura, Takashi,Yoshino, Hitoshi,Tachibana, Kazutaka,Shiraishi, Takuya,Honma, Akie,Mizutani, Akemi,Muraoka, Terushige
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experimental part
p. 1117 - 1120
(2011/06/20)
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- Quinoline derivatives as neurokinin receptor antagonists
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The present invention relates to substituted quinoline hydrazides of Formula (I): wherein R1, R2, R3, R4, R5, X, Y and Z are defined herein, pharmaceutical compositions comprising them and their use in treating diseases mediated by neurokinin-2 and/or neurokinin-3 (NK-3) receptors. These compounds can thus be used in methods of treatment to suppress and treat such disorders.
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Page/Page column 15
(2009/04/24)
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- From haloquinolines and halopyridines to quinoline- and pyridinesulfonyl chlorides and sulfonamides
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The action of sodium methanethiolate (in boiling DMF) towards haloazines (i.e. chloro- or bromo-pyridines and quinolines) (1) (with halogen substituent in non-aza-activated position) causes sequentially halogen ipso-substitution to methylthioazines (2) and then S-demethylation to azinethiolates (3A), which were: i) subjected to S-methylation, ii) oxidized to diazinyl disulfides (4) and iii) oxidatively chlorinated to azinesulfonyl chlorides (5). α- and γ-pyridine- and quinolinesulfonyl chlorides (5a, 5c, 5d and 5f) were prepared by oxidative chlorination of respective disulfides (4) performed in conc. hydrochloric acid and characterized by 1H and 13C NMR spectra. All azinesulfonyl chlorides (5) were effectively converted to corresponding azinesulfonamides (6).
- Maslankiewicz, Andrzej,Marciniec, Krzysztof,Pawlowski, Maciej,Zajdel, Pawel
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p. 1975 - 1990
(2008/09/16)
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