Alkaloids: synthesis and pharmacology

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• ESRA AKKOL

OBJECTIVE: The aim of this review is to make a state of the art of the potential influence of neuropsychiatric symptoms (NPs) on caregiver stress and vice versa. METHODS: We searched PubMed and Google Scholar for potential eligible articles. RESULTS: Patients with Alzheimer's disease (AD) usually need high levels of c…

• AHMET TURAN IŞIK

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• ESRA AKKOL

Biocatalytic approaches have yielded efficient total syntheses of the major Amaryllidaceae alkaloids, all based on the key enzymatic dioxygenation of suitable aromatic precursors. This paper discusses the logic of general synthetic design for lycoricidine, narciclasine, pancratistatin, and 7-deoxypancratistatin. Exper…

Masked acyl cyanide (MAC) reagents are shown to be effective umpolung synthons for enantioselective Michael addition to substituted enones. The reactions are catalyzed by chiral squaramides and afford adducts in high yields (90-99%) and with excellent enantioselectivities (85-98%). The addition products are unmasked t…

• YUNUS EMRE TÜRKMEN

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• NEHİR SOMER

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• HANEFİ ÖZBEK
• HAYRİYE GÜLÇİN SALTAN İŞCAN

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• ÖZLEM BAHADIR ACIKARA

Psychotria klugii yielded two new benzoquinolizidine alkaloids, klugine (1) and 7'-O-demethylisocephaeline (2), together with the previously known cephaeline (3), isocephaeline (4), and 7-O-methylipecoside (5). The structures and stereochemistry of 1 and 2 were determined by 1D and 2D NMR data and circular dichroism e…

• ERDAL BEDİR

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• FEVZİ ÖZGÖKÇE

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSymmetry-Driven Synthesis of Indole Alkaloids: Asymmetric Total Syntheses of (+)-Yohimbine, (-)-Yohimbone, (-)-Yohimbane, and (+)-AlloyohimbaneJeffrey Aube, Shomir Ghosh, and Mehmet TanolCite this: J. Am. Chem. Soc. 1994, 116, 20, 9009–9018Publication Date (Print):October 1,…

• MEHMET TANOL

The genus Papaver is highly esteemed in the pharmacy industry, in the culinary field, and as ornamental plants. These plants are also valued in traditional medicine. Among all Papaver species, Papaver somniferum L. (opium poppy) is the most important species in supplying phytochemicals for the formulation of drugs, ma…