The aporphine alkaloid boldine improves endothelial function in spontaneously hypertensive rats per Lau, Yeh-Siang, Machha, A., Achike, F.I., Mustafa, Mohd Rais, Murugan, D.

“…Boldine, a major aporphine alkaloid found in Chilean boldo tree, is a potent antioxidant. …”
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Naucline, a new indole alkaloid from the bark of nauclea officinalis per Liew, Sook Yee, Mukhtar, M.R., Hadi, A.H.A., Awang, Khalijah, Mustafa, Mohd Rais, Zaima, K., Morita, H., Litaudon, M.

“…A new indole alkaloid, naucline (1) together with four known alkaloids, angustine (2), angustidine (3), nauclefine (4) and naucletine (5), were isolated from the bark of Nauclea officinalis. …”
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The aporphine alkaloid boldine improves endothelial function in spontaneously hypertensive rats per Yeh-Siang, L., Ajay, M., Achike, F.I., Murugan, D., Mustafa, Mohd Rais

“…Boldine, a major aporphine alkaloid found in Chilean boldo tree, is a potent antioxidant. …”
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Tea polyphenols and alkaloids content using Soxhlet and direct extraction methods per Chin, Clament Fui Seung, Khim Phin Chong, Khim Phin, Markus Atong, Nyet Kui Wong

“…Leaf buds were found to have a higher polyphenol and alkaloid contents compared to young and old leaves. …”
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Additional phenanthrene alkaloid isolated from the leaves of Cryptocarya nigra (Lauraceae) per Ayu Afiqah Nasrullah

“…Previous studies on alkaloidal constituents isolated from the bark of Cryptocarya nigra (Lauraceae), a perennial widely distributed in the forest of Malaysia, have revealed that it is a good source of phenanthrene alkaloids 2-4. …”
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Alkaloids and sulphur-containing amides from Glycosmis citrifolia and Glycosmis elongata per Rahmani, Mawardi, Muhammad Serang, Rosmiati, Mohd Hashim, Najihah, Md.Sukari, Mohd. Aspollah, Ee , Gwendoline Cheng Lian, Ali, Abdul Manaf, Mohd Ismail, Hazar Bebe

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Comparison of antioxidative properties of carbazole alkaloids from Murraya koenigii leaves per Tachibana, Yukari, Kikuzaki, Hiroe, Lajis, Nordin, Nakatani, Nobuji

“…A new dimeric carbazole alkaloid, 8,10′-[3,3′,11,11′ -tetrahydro-9,9′-dihydroxy-3,3′,5,8′-tetramethyl-3, 3′-bis(4-methyl-3-pentenyl)]bipyrano[3,2-a]carbazole (12), was isolated from the CH2Cl2 extract of Murraya koenigii together with six known carbazole alkaloids, koenimbine (6), O-methylmurrayamine A (7), O-methylmahanine (8), isomahanine (9), bismahanine (10), and bispyrayafoline (11). …”
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Antioxidant and anti-inflammatory properties of Erythroxylum cuneatum alkaloid leaf extract per Lim, Seow Li, Chiroma, Samaila Musa, Hashim, Thuaibah, Adam, Siti Khadijah, Mohd Moklas, Mohamad Aris, Yusuf, Zauyah, Abdul Rahman, Shamima

“…This study aimed at exploring the antioxidative and anti-inflammatory properties of E. cuneatum alkaloid leaf extract. The alkaloid extract was obtained through Soxhlet heat extraction method, while the antioxidantive properties were assessed via 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging, ferric reducing antioxidant power (FRAP) and xanthine oxidase inhibition (XOI) assays. …”
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Total synthesis of Galbulimima alkaloids. Resin-bound glycosyl phosphates as glycosyl donors. per Hunt, Diana Katharine

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Nature's approach toward ring formation and structural diversity in ergot alkaloid biosynthesis per Cheng, Johnathan Zandrew

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[4 + 2] cycloadditions of iminoacetonitriles : synthesis of highly substituted tetrahydropyridines and indolizidine alkaloids per Tumidajski, Stephanie

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The effects of selected inorganic salts on the growth and alkaloids present in cinchona tissue cultures per , BROTOSISWORO, Sudarman, , Prof.Drs. Sardjoko, Apt

Identifikasi senyawa alkaloid dari batang kayu kuning (Arcangelisia Flava Merr) per , NURYANTI, Siti, , Ir. Respati Sastro Sayono

Lapran penelitian isolasi senyawa alkaloid dari tumbuhan mengkunyit (febraurea chloroleuca) per , Sabirin Matsjeh

Polyhydroxylated pyrrolidine and pyrrolizidine alkaloids from Hyancinthoides non-scripta and Scilla campanulata. per Kato, A, Adachi, I, Miyauchi, M, Ikeda, K, Komae, T, Kizu, H, Kameda, Y, Watson, A, Nash, R, Wormald, MR, Fleet, G, Asano, N

Polyhydroxylated pyrrolidine and piperidine alkaloids from Adenophora triphylla var. japonica (Campanulaceae). per Asano, N, Nishida, M, Miyauchi, M, Ikeda, K, Yamamoto, M, Kizu, H, Kameda, Y, Watson, A, Nash, R, Fleet, G

“…Adenophora triphylla var. japonica (Campanulaceae) yielded two new alkaloids, the 6-C-butyl derivative of 2R,5R-bis(hydroxymethyl)-3R,4R-dihydroxypyrrolidine (DMDP) and alpha-1-C-ethyl-fagomine, together with the known alkaloids 1,4-dideoxy-1,4-imino-D-arabinitol, 1-deoxynojirimycin, and 1-deoxymannojirimycin. 6-C-Butyl-DMDP showed inhibitory activity toward almond beta-glucosidase (IC50 = 68 microM), whereas alpha-1-C-ethyl-fagomine inhibited bovine liver beta-galactosidase (IC50 = 29 microM).…”

STEREOSELECTIVE AND REGIOSELECTIVE FUNCTIONALIZATION OF PROTOPINE ALKALOIDS - THE SYNTHESIS OF 1-SUBSTITUTED O-METHYLDIHYDROCRYPTOPINES per Davies, S, Goodfellow, C, Peach, J, Waller, A

Marine alkaloids as bioactive agents against protozoal neglected tropical diseases and malaria per Tempone, AG, Pieper, P, Borborema, SET, Thevenard, F, Lago, JHG, Croft, SL, Anderson, EA

“…Among the many classes of natural products, alkaloids have a rich history of therapeutic applications. …”

Short and Efficient Syntheses of Protoberberine Alkaloids using Palladium-Catalyzed Enolate Arylation. per Gatland, A, Pilgrim, B, Procopiou, P, Donohoe, T

“…A concise synthesis of the biologically active alkaloid berberine is reported, and a versatile palladium-catalyzed enolate arylation is used to form the isoquinoline core. …”

Evolution of a bifunctional reductase/diels-alderase for fungal indole alkaloid biosynthesis per Dan, Q, Newmister, SA, Klas, KR, Fraley, AE, Paton, RS, Houk, KN, Williams, RM, Sherman, DH, Smith, JL