Rhazinilam−leuconolam−leuconoxine alkaloids from leuconotis griffithii by Kam, T.S., Gan, C.Y., Low, Y.Y., Thomas, N.F.

“…Eight new indole alkaloids (1–8) belonging to the rhazinilam–leuconolam–leuconoxine group, in addition to 52 other alkaloids, were isolated from the stem-bark extract of Leuconotis griffithii, viz., nor-rhazinicine (1), 5,21-dihydrorhazinilam-N-oxide (2), 3,14-dehydroleuconolam (3), and leuconodines A–E (4–8). …”
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Unusual phenethylamine-containing alkaloids from Elaeocarpus tectorius by Ezeoke, Margret Chinonso, Krishnan, Premanand, Sim, Dawn Su Yin, Lim, Siew Huah, Low, Yun Yee, Chong, Kam Weng, Lim, Kuan Hon

“…Plausible biosynthetic pathways to the four alkaloids are proposed.…”

Alkaloids from Alphonsea elliptica barks and their biological activities by Aldulaimi, Ahmed Kareem Obaid, Abdul Azziz, Saripah Salbiah Syed, Bakri, Yuhanis Mhd, Nafiah, Mohd Azlan, Awang, Khalijah, Aowda, Saadon Abdulla, Litaudon, Marc, Hassan, Norazian Mohd, Naz, Humera, Abbas, Phirdaous, Hashim, Yumi Zuhanis Has-Yun, Majhool, Alhussein Arkan

“…Phytochemical study of the barks led tothe isolation of five alkaloid in which two were oxoaporphines; atherospermidine (1) and liriodenine (2),two were dioxoaporphines;cepharadione A (3) and N- methylouregidione (4), and an azafluorenone alkaloid;kinabaline (5). …”

Isolation of Oxoaphorpine Alkaloid from Bark of Cryptocarya Ferrea by Saidi, Nurdin, Awang, Khalijah, Yahya, Mustanir

“…Extraction, isolation, identification and characterization of the compounds isolated from the bark of Cryptocarya ferrea yielded three known oxoaphorpine alkaloids. They are o-metilmoschatoline 1, ateroline 2 and subsesiline 3. …”

New quaternary Corynanthé alkaloid from Lerchea bracteata by Arbain, Dayar, Lajis, Nordin H., Putra, Deddi Prima, Sargent, Melvyn V., Skelton, Brian W., White, Allan H.

“…(Rubiaceae) has yielded a quaternary Corynanthé alkaloid, dihydro-3-epi-corynantheol methochloride (lercheine) 4 the structure of which followed from analysis of its spectral data and by X-ray crystal structure determination of the corresponding bromide.…”
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Two new acridone alkaloids from Glycosmis macrantha by Yahayu, Maizatul Akmal, Rahmani, Mawardi, Mohd Hashim, Najihah, Mohd Amin, Muhammad Aizat, Ee, Gwendoline Cheng Lian, Sukari, Mohd Aspollah, Md Akim, Abdah

“…The structures of these alkaloids were determined by detailed spectral analysis and also by comparison with reported data.…”
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Vasorelaxant activity of indole alkaloids from Tabernaemontana dichotoma. by Zaima, Kazumasa, Koga, Ikumi, Iwasawa, Nobuhide, Hosoya, Takahiro, Hirasawa, Yusuke, Kaneda, Toshio, Ismail, Intan Safinar, Lajis, Nordin, Morita, Hiroshi

“…We isolated eight indole alkaloids including 10-methoxyalstonerine (1), a new macroline type indole alkaloid, from bark of T. dichotoma. …”
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Cytotoxic carbazole alkaloids from Murraya koenigii (Rutaceae) by Md. Sukari, Mohd. Aspollah, Ismail, N., Abu Bakar, Noor Haslizawati, Ithnin, Nur Liyana

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The development of new synthetic strategies and methodologies for complex alkaloid total synthesis : a concise synthesis of (+)-chimonanthine, (+)-WIN 64821, (-)-ditryptophenaline and related alkaloids by Schmidt, Michael Anthony, 1980-

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Antioxidant and antimicrobial screening of isolated alkaloids from tinospora crispa by Hazrulrizawati, Abd Hamid, Roziasyahira, Mutazah, Izzah Hayati, Yahya, Zeyohannes, Senait Sileshi

“…The antioxidant capacity by DPPH radical scavenging and antimicrobial activity by disk diffusion and broth microdilution method of nine isolated alkaloids from T. crispa were evaluated. All isolated alkaloids had been divided into three groups which were aporphine alkaloids, N-formylannonaine (1), N-formylnornuciferine (2), magnoflorine (9), oxoaporphine alkaloids, lysicamine (3) and liriodenine (4); and protoberberine alkaloids, columbamine(6), dihydrodiscretamine (7) and 4,13-dihydroxy-2,8,9-trimethoxydibenzo [a,g]quinolizinium (8). …”
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Anticholinesterase Inhibitory Activity of Quaternary Alkaloids from Tinospora crispa by M. M., Yusoff, Hazrulrizawati, Hamid, Houghtan, Peter

“…Quaternary alkaloids are the major alkaloids isolated from Tinospora species. …”
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Development and application of new strategies for synthesis of complex diketopiperazine alkaloids by Nelson, Brandon M. (Brandon Michael)

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Silencing of tryptamine biosynthesis for production of nonnatural alkaloids in plant culture by O'Connor, Sarah Ellen, Maresh, Justin J., Runguphan, Weerawat

“…To exploit this chemically silent background, we introduced an unnatural tryptamine analog to the production media and demonstrated that the silenced plant culture could produce a variety of novel products derived from this unnatural starting substrate. The novel alkaloids were not contaminated by the presence of the natural alkaloids normally present in C. roseus. …”
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Total synthesis of Class II and Class III Galbulimima Alkaloids by Tjandra, Meiliana

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Reprogramming alkaloid biosynthesis in Catharanthus roseus : synthetic biology in plants by Runguphan, Weerawat

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Radical-mediated Dimerization and Oxidation Reactions for the Synthesis of Complex Alkaloids by Lathrop, Stephen, Kim, Justin, Movassaghi, Mohammad

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Towards the stereoselective synthesis of bicyclic and tricyclic alkaloid natural products by Patcharaporn Sae-Lao

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Isolation of the pyrrolizidine alkaloid 1-epialexine from Castanospermum australe by Jones, L, Hollinshead, J, Fleet, G, Thompson, A, Watkin, D, Gal, Z, Jenkinson, S, Kato, A, Nash, R

“…The Australian leguminous tree Castanospermum australe contains the anti-viral glucose analogue indolizidine alkaloid castanospermine. As the result of a search for new bioactive carbohydrate-like compounds we now report the isolation of the novel polyhydroxylated pyrrolizidine alkaloid, 1-epialexine, from the leaves and stems of C. australe. 1-Epialexine is a weak inhibitor of β-mannosidase from Cellullomonas fimi. © 2010 Phytochemical Society of Europe.…”

A practical and scaleable total synthesis of the jaborandi alkaloid (+)-pilocarpine by Davies, S, Roberts, P, Stephenson, P, Storr, H, Thomson, J

Total synthesis of the pyrrolizidine alkaloid natural product NP25302 by Stevens, K, Robertson, J