Results 61 to 70 of about 6,842 (226)
Two new isoquinolines from Corydalis saxicola
, 2022 Two new isoquinolines (1 and 3), along with 4 known isoquinolines were obtained from the ethanol extract of Corydalis saxicola Bunting. Their structures were elucidated based on detailed spectroscopic data (NMR, HR-ESIMS) and comparison with literature ...
Wen-Di Tang (11984190) +6 more
core +1 more source
Isoquinoline Alkaloids from the Leaves of
Natural Product Communications, 2007 This study was aimed at investigating the alkaloids present in the leaves of Dehaasia hainanensis. Thirteen isoquinolines were isolated and characterized.
Chien-Kuang Chen +3 more
doaj +1 more source
, 2016 Radical cyclization of alkoxy-substituted 1-(2‘-bromobenzyl)-3,4-dihydroisoquinolines 1 with AIBN−Bu3SnH gave 6a,7-dehydroaporphines 2 preferentially.
Shiho Uchiito (2476501) +5 more
core +1 more source
Animal Research and One Health, EarlyView.Selenomethionine can ameliorate arachidonic acid‐induced colonic injury through synergistic mechanisms, including alleviating inflammatory responses, improving barrier integrity, enhancing antioxidant capacity by upregulating selenoprotein expression, selectively regulating AA metabolism to reduce pro‐inflammatory oxylipins and promote the production ...
Huihui Tian +8 more
wiley +1 more source
2-Methylsulfanylbenzo[f]isoquinoline
, 2015 S-Methylation of a 4-(naphth-2-yl)-β-thiolactam gives an intermediate 4-(naphth-2-yl) substituted 1-azetine which undergoes a [2+2] ring-opening followed by electrocyclic ring closure of the resulting 2-azadiene to give a benzo[f ...
Khan, Musharraf +6 more
core +1 more source
Cross‐Dehydrogenative Coupling Reactions With Redox‐Active Guanidine Reagents
Chemistry – A European Journal, EarlyView.ABSTRACT Cross‐dehydrogenative coupling (CDC) reactions are attractive and environmentally friendly ways to form new C‐C and other element‐element bonds. Here, we report the first CDC reactions triggered by a redox‐active guanidine reagent. N‐phenyltetrahydroisoquinoline and derivatives with electron‐donating and withdrawing substituents at the N ...
Petra Walter +2 more
wiley +1 more source
, 2019 An efficient and base-mediated one-pot regiospecific synthesis of structurally diversified isoquinolines and benzo[h] isoquinolines from easily accessible ortho-formyl-arylketones and aryl/(het)arylmethanamines has been described.
Verma, S. +9 more
core +1 more source
Studia Universitatis Babes-Bolyai Chemia, 2019 Two series of new fused pyrrolo[3’,4’:3,4]pyrrolo[1,2-a]quinoline and pyrrolo[3',4':3,4]pyrrolo[2,1-a]isoquinoline derivatives were synthesized and evaluated for the antimicrobial activity.
Cristina M. AL MATARNEH +6 more
doaj +1 more source
Food Chemistry International, EarlyView.Sanguinarine, a toxic alkaloid present in argemone, can lead to epidemic dropsy or chronic diseases through DNA intercalation and immune system suppression. Regulatory efforts face challenges due to economic motivations for adulteration as well as technical, social, and infrastructure barriers.
Gururaj Pejavara Narayana +4 more
wiley +1 more source
, 2022 We have developed a copper-catalyzed synthesis of pyrrolo[2,1-a]isoquinolines with terminal alkynes, aldehydes, and tetrahydroisoquinolines. A variety of pyrrolo[2,1-a]isoquinolines have been prepared in 17–69% yield via a condensation/Mannich-type ...
Xiao-Hui Chen (543865) +1 more
core +1 more source