Flexible strategy for the synthesis of pyrrolizidine alkaloids. by Donohoe, T, Thomas, R, Cheeseman, MD, Rigby, C, Bhalay, G, Linney, I

“…A general strategy for the production of pyrrolizidine alkaloids is described, starting from intermediate (+)-9. …”

A biomimetic approach to the manzamine alkaloids by Baldwin, J, Claridge, T, Culshaw, A, Heupel, F, Smrckova, S, Whitehead, R

“…Results from model studies of a synthetic approach to the manzamine alkaloids based on a biogenetic theory are reported together with the synthesis of a plausible biogenetic precursor to these alkaloids.…”

A BIOMIMETIC APPROACH TO THE MANZAMINE ALKALOIDS by Baldwin, J, Claridge, T, Culshaw, A, Smrckova, S, Whitehead, R

Structural revision of the Hancock alkaloid (-)-galipeine by Davies, S, Fletcher, A, Houlsby, I, Roberts, P, Thomson, J

“…The 1H and 13C NMR data of synthetic samples of (S)-N(1)-methyl-2-[2'-(3″-hydroxy-4″-methoxyphenyl)ethyl]-1,2,3,4-tetrahydroquinoline, the originally proposed structure of the Hancock alkaloid (-)-galipeine, do not match those of the natural product. …”

Catalytic divergent synthesis of quinazolinone alkaloids by Wei, T

“…<p>The general goal of this thesis was to implement a new, catalytic, enantioselective isocyanoacetate ketone aldol reaction into a challenging total synthesis plan, in order to achieve a catalyst controlled stereoselective total synthesis of a specific subset of quinazolinone alkaloids - tryptoquivalines and chaetominine.</p> <p><b>Chapter 1</b> firstly introduces the panorama of quinazolinone alkaloids and pioneering synthetic achievements on tryptoquivalines and chaetominines. …”

Investigations into the manzamine alkaloid biosynthetic hypothesis by Baldwin, J, Ciaridge, T, Culshaw, A, Heupel, F, Lee, V, Spring, DR, Whitehead, R, Boughtflower, R, Mutton, I, Upton, R

“…The biomimetic synthesis of a pentacyclic alkaloid (keramaphidin B, 1), an intermediate in the biogenetic pathway to the manzamine alkaloids, has been achieved. …”

New alkaloids from Phoebe scortechinii by Awang, Khalijah, Mukhtar, Mat Ropi, Mustafa, Mohd Rais, Litaudon, M., Shaari, K., Mohamad, K., Hadi, A.H.A.

“…The proaporphine, tetrahydropronuciferine(2), was isolated for the first time as a natural product. The alkaloids were elucidated primarily by means of high field NMR and HRMS…”
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Alkaloids from some of the Malaysian annonaceae by Mohd. Sharif, Atan

Subjects: “…Alkaloids - Malaysia…”
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Alkaloid Constituents of Haplophyllum laeviusculum (Rutaceae). by Parhoodeh, Parimah, Rahmani, Mawardi, Mohd. Hashim, Najihah, Md.Sukari, Mohd. Aspollah, Ee, Gwendoline Cheng Lian

“…The investigation of the aerial parts of Haplophyllum laeviusculum (Rutaceae), a perennial herb native to Iran, afforded three alkaloids, skimmianine (1), lunamarine (2), ribalinidine (3) and and two common sterols, γ-sitosterol and campesterol. …”
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The Alkaloids of Lindera pipericarpa Boerl (Lauraceae) by Lajis, Md Nordin, Mohd Sharif, Atan, Kiew, Ruth, Niyaz Khan, Mohammad, Samadi, Zainuddin

“…The alkaloids ofLindera pipericarpa were isolated and characterized as N-methyllaurotetanine, iscocorydine, and nor-isocorydine…”
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The Alkaloids of Ophiorrhiza communis and O. tomentosa by Hamzah, Ahmad Sazali, Arbain, Dayar, Mahyudin, V. Sargent, Malviyn, Lajis, Md Nordin

“…Two alkaloids, harman and strictosidinic acid, were isolated from the leaves and bark of Dphiorrhiza communis Linn. …”
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Aporphine alkaloids of Cinnamomum mollissimum and their bioactivities by Masnon, Fatin Fasihah, Hassan, Najmah P. S., Ahmad, Farediah

“…Their structures were elucidated by spectral analysis. The alkaloid crude extract demonstrated significant antibacterial and antioxidant activities…”

Alkaloid and Non Alkaloid Extracts of Solanum melongena Leaves as Green Corrosion Inhibitors on Carbon Steel in Alkaline Medium by B. U. Ugi

“… The corrosion and inhibition behavior of Carbon steel (CS) in high alkaline solution [Sodium trioxocarbonate (IV)] in the presence of alkaloid and non alkaloid extracts of Solanum melongena leaves have been studied using conventional methods - mass loss and gasometric techniques. …”
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Alkaloid-Rich Crude Extracts, Fractions and Piperamide Alkaloids of <i>Piper guineense</i> Possess Promising Antibacterial Effects by Eunice Ego Mgbeahuruike, Pia Fyhrquist, Heikki Vuorela, Riitta Julkunen-Tiitto, Yvonne Holm

“…In addition, some new piperamide alkaloids were identified, such as a piperine and a piperidine alkaloid derivative and two unknown piperamide alkaloids. …”
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Effects of Supplementation of Alkaloid and Non Alkaloid from Sauropus androgynus Leaves on Egg Production and Lipid Profil in Layer Chicken by U Santoso, T Suteky, Y Fenita

Subjects: “…alkaloid…”
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Bioguided Isolation of Alkaloids and Pharmacological Effects of the Total Alkaloid Fraction from <i>Aspidosperma pyrifolium</i> Mart. (Apocynaceae) by Francisca Sabrina Vieira Lins, Vanessa Farias da Silva, Josean Fechine Tavares, Vanda Lúcia dos Santos, Harley da Silva Alves

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Characterization and Lifetime Dietary Risk Assessment of Eighteen Pyrrolizidine Alkaloids and Pyrrolizidine Alkaloid N-Oxides in New Zealand Honey by Andrew J. Pearson, Jeane E. F. Nicolas, Jane E. Lancaster, C. Wymond Symes

“…Pyrrolizidine alkaloids (PAs) are a large group of botanical toxins of concern, as they are considered genotoxic carcinogens, with long-term dietary exposure presenting an elevated risk of liver cancer. …”
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Modern alkaloids : structure, isolation, synthesis and biology / by Fattorusso, Ernesto, Taglialatela-Scafati, Orazio

Subjects: “…Alkaloids…”

Alkaloid from the stem-bark of Alstonia Angustifolia / by Nurul Nabilah Zainal Abidin, 1990-, Norsiah Ismail, supervisor, Fakulti Sains

A preliminary investigation of the alkaloids of Phoebe Lanceolata / by 329078 Arbain, Dayar, Sargent, Melvyn V.