IUCrData, 2017 In the title compound, C23H23ClN2O4S, the 4-chlorophenyl ring is inclined to the pyridine ring of the isoquinoline group by 71.86 (13)°. In the crystal, molecules are linked by pairs of O—H...O hydrogen bonds, forming inversion dimers, which stack along ...
Joel T. Mague +4 more
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Antidiabetic and antimicrobial activities of fractions and compounds isolated from Berberis brevissima Jafri and Berberis parkeriana Schneid [PDF]
, 2013 Methanol extracts of the roots of B. brevissima and B. parkeriana were examined for antidiabetic and antimicrobial activities. Six compounds i.e berberine, 8-oxo-berberine, dehydrocheilanthifoline, columbamine, jatrorrhizine and glutamic acid were ...
Ali, Saqib +9 more
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Can Isoquinoline Alkaloids Affect Platelet Aggregation in Whole Human Blood?
Toxins, 2022 Isoquinoline alkaloids have multiple biological activities, which might be associated with positive pharmacological effects as well as negative adverse reactions.
Mst Shamima Parvin +8 more
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Carbon-13 n.m.r. investigation on the nitrogen methylation of the mono- and diazanaphthalenes [PDF]
, 1977 The 13C n.m.r. spectra of the N-methylated mono- and diazanaphthalenes have been recorded and analysed. It has been shown that N-methylation as well as N-protonation in cinnoline occur predominantly at the -nitrogen atom.
Ham, Dirk M.W. van den +2 more
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Inorganics, 2023 Four iridium(III) dyes functionalized with aldehyde functional group in the cyclometalating (C^N) ligands, bearing either diethyl [2,2′-bipyridine]-4,4′-dicarboxylate or tetraethyl [2,2′-bipyridine]-4,4′-diylbis(phosphonate) anchoring groups, coded as ...
Xiao Yao +6 more
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S-adenosyl-l-methionine: (S) -7,8,13, 14-tetrahydroberberine--n-methyltransferase, a branch point enzyme in the biosynthesis of benzophenanthridine and protopine alkaloids. [PDF]
, 1986 The enzyme which transfers the CH3-group of S-adenosylmethionine to the nitrogen atom of (S)-tetrahydroberberine and (S)-stylopine is found to occur in a number of plant cell cultures originating from species containing alkaloids; it is located at an ...
Amann +8 more
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Marine Drugs, 2023 The mold Monascus, also called red yeast rice, anka, or koji, has been used as the natural food coloring agent and food additives for more than 1000 years in Asian countries. It has also been used in Chinese herbology and traditional Chinese medicine due
Ming-Der Wu +2 more
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Asymmetric Electrophilic alpha-Amidoalkylation, VII1): Generation, Crystal Structure, and Trapping Reactions of a Chiral 6,7-Dimethoxy-1,2,3,4-tetrahydroisoquinoline Derived N-Acyliminium Ion [PDF]
, 1990 The camphanic acid amide 4 has efficiently been oxidized with triphenylcarbenium tetrafluoroborate (3) to yield the chiral N-acyliminium ion 1. Trapping reactions of 1 with the silyl nucleophiles 7a-c and 10a-f proceeded with stereoselective bond ...
Aledesanmi +15 more
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Hybrid Azine Derivatives: A Useful Approach for Antimicrobial Therapy
Pharmaceutics, 2022 Nowadays, infectious diseases caused by microorganisms are a major threat to human health, mostly because of drug resistance, multi-drug resistance and extensive-drug-resistance phenomena to microbial pathogens.
Dorina Amariucai-Mantu +4 more
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Regioselective Reactions of Highly Substituted Arynes [PDF]
, 2010 The fully regioselective reactivity of four new highly substituted silyl aryl triflate aryne precursors in aryne acyl-alkylation, acyl-alkylation/condensation, and heteroannulation reactions is reported.
Bugga, Pradeep +4 more
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