The title compound, C(33)H(49)NO(3), is the propargyl-amide of 18β-glycyrrhetinic acid, a penta-cyclic triterpenoid of inter-est as a therapeutic agent. The five six-membered rings of the glycyrrhetinic acid moiety show normal geometries, with four rings in chair conformations and the unsaturated ring C in a half-chair conformation. In the crystal, the terminal N-propargylcarboxamide group has ...

Swietenia macrophylla is known to possess several medicinal uses, however, its antibacterial and antibiofilm activities against foodborne pathogens remain not well investigated. The present work was performed examine the phytochemical compounds, of S. ethanolic extract (SMEE) four namely, Salmonella typhimurium ATCC 14028, Escherichia coli 25922, Shigella sonnei 33862 Pseudomonas aeruginosa 101...

In the penta-cyclic triterpenoide skeleton of the title mol-ecule, C(27)H(43)NO(2) [systematic name: (3E,3aS,5aR,5bR,7aR,11R,11aR,11bR,13aR,13bR)-5a,5b,10,10,13b-penta-methyl-icosa-hydro-1H-11,7a-(epoxy-methano)cyclo-penta-[a]chrysen-3-one oxime], the five-membered ring A has an envelope conformation, while the six-membered rings B-E adopt chair conformations. Rings A and B are cis-fused. The h...

The Palaeocene-Eocene organic sedimentary archives comprising lignites, carbonaceous shales, and shales from the Palana Formation of Bikaner-Nagaur Basin, Rajasthan, India, are investigated in this study using elemental biogeochemical proxies. objectives investigation to elucidate sources matter their responses palaeoredox palaeoclimatic conditions, as well reconstruct palaeoenvironment deposit...

Asystasia gangetica (L.) T. Anderson is an edible vegetable, cultivated in Vietnam. This plant was reported to contain a diverse chemical composition including megastimans, flavonoids, iridoids, and phenylpropanoid glycosides. It also exhibited many interesting biological activities such as antibacterial, antifungal, antihypertensive, anti-asthmatic, analgesic, anti-inflammatory, tyrosinase inh...

Chi Weigela, thuộc họ Kim ngân (Caprifoliaceae) được sử dụng rộng rãi trong y học cổ truyền tại các nước châu Á. Các hợp chất saponin phân lập từ chi Weigela có nhiều hoạt tính sinh mạnh như kháng oxy hóa, viêm và ung thư. Nghiên cứu đã tạo cao chiết ethanol loài florida “Jean’s Gold” bằng phương pháp xuất hỗ trợ vi sóng. Hai tách dựa trên sắc ký hiện đại. Cấu trúc hóa của này xác định là olean...