Results 81 to 90 of about 4,806 (212)

Recent Advances in Ene Reactions with Carbon Enophiles

open access: yesAdvanced Synthesis &Catalysis, Volume 367, Issue 22, November 28, 2025.
Recent advances in the classical intra‐ and intermolecular ene nexus with carbon enophiles (alkenes, alkynes, arynes, and allenes) show a considerable increase in structural complexity and an enormous potential for functional applications in polymer science.
Thomas J. J. Müller
wiley   +1 more source

Crinane Alkaloids of the Amaryllidaceae with Cytotoxic Effects in Human Cervical Adenocarcinoma (HeLa) Cells

open access: yesNatural Product Communications, 2014
The family Amaryllidaceae has a long history of usage in the traditional medicinal practices of the indigenous peoples of South Africa, with three of its species known to be used for cancer treatment.
Jerald J. Nair   +5 more
doaj   +1 more source

Alkaloids from Chilean species of the genus Rhodophiala C. Presl (Amaryllidaceae) and their chemotaxonomic importance

open access: yesGayana: Botanica, 2018
The family Amaryllidaceae is widely distributed from temperate to tropical regions. Amaryllidaceae species from the subfamily Amaryllidoideae can biosynthesize alkaloids with important physiological effects. Rhodophiala C.
Isabel Lizama-Bizama   +4 more
doaj   +1 more source

N-oxide alkaloids from Crinum amabile (Amaryllidaceae) [PDF]

open access: yesMolecules, 2018
Natural products play an important role in the development of new drugs. In this context, the Amaryllidaceae alkaloids have attracted considerable attention in view of their unique structural features and various biological activities. In this study, twenty-three alkaloids were identified from Crinum amabile by GC-MS and two new structures (augustine N-
Luciana R. Tallini   +6 more
openaire   +6 more sources

In Vitro, In Vivo, and Clinical Trial Approaches to Investigate the Effects of Medicinal Plants on Burn Wound Healing: A Systematic Review

open access: yesInternational Wound Journal, Volume 22, Issue 11, November 2025.
ABSTRACT Use of synthetic drugs for the treatment of burn wounds has decreased due to adverse effects, and they are gradually being replaced by compounds obtained from natural products, especially medicinal plants. This review focused on pre‐clinical and clinical studies examining the efficacy of medicinal plants in promoting burn wound healing.
Mahdi Bagheri   +4 more
wiley   +1 more source

Total synthesis of the Amaryllidaceae alkaloid clivonine [PDF]

open access: yesOrganic & Biomolecular Chemistry, 2011
Two syntheses of the Amaryllidaceae alkaloid clivonine (1) are described. Both employ previously reported 7-arylhydrindane 6 as an intermediate but differ in the method employed for subsequent introduction of what becomes the ring-B lactone carbonyl carbon (C7). The synthesis featuring a Bischler-Napieralski reaction for this transformation constitutes
Haning, H   +8 more
openaire   +6 more sources

Nerinine and homolycorine, amaryllidaceae alkaloids from the bulbs of Galanthus transcaucasicus Fomin [PDF]

open access: yesResearch Journal of Pharmacognosy, 2017
Background and objectives: Many members of the Amaryllidaceae are regarded as toxic. The toxic constituents that occur in the whole family are referred to as the Amaryllidaceae alkaloids.
M. Babashpour-Asl   +3 more
doaj  

A Biomimetic Total Synthesis of Clivonine

open access: yes, 2011
The first chapter of this thesis discusses the biomimetic total synthesis of clivonine. Clivonine is a member of the Amaryllidaceae family of alkaloids and was isolated from the plant Clivia miniata Regel by Wildman in 1956.
Paddock, Victoria L.   +1 more
core   +1 more source

Nonconventional Techniques in Plant Alkaloid Extraction: A Decade of Progress (2014–2023)

open access: yesChemistry &Biodiversity, Volume 22, Issue 8, August 2025.
This figure seeks to represent the evolution of the different unconventional approaches that were adopted for the extraction of plant‐derived alkaloids during the decade from 2014 to 2023. ABSTRACT Plant metabolism encompasses primary and secondary pathways, with secondary metabolism yielding diverse natural products crucial for plant adaptation and ...
Victor Menezes Sipoloni   +5 more
wiley   +1 more source

Chemical Constituents of and their Cytotoxic Activities

open access: yesNatural Product Communications, 2011
An alcoholic extract of Lycoris albiflora (Amaryllidaceae) showed potent cytotoxic activity against HL-60 cells with an IC 50 value of 1.7 μg/mL.
Maki Jitsuno   +5 more
doaj   +1 more source

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