Biflorin is an o -naphthoquinone with proven cytotoxic effects on tumor cells showing antimicrobial, antitumor and antimutagenic activities. Biflorin is an isolated compound taken from the roots of ...

Three new naphthoquinone pigments, 6,7-dimethoxydihydrolindbladione (1), dihydrolindbladione (2), and 6-methoxydihydrolindbladione (3), have been isolated from a myxomycete Lindbladia tubulina, and ...

The synthesis was initiated with these ideas in mind (Scheme 2). To test the feasibility of our strategy, we first prepared naphthoquinone 7 through a Diels-Alder reaction of 2-chloro-1,4-benzoquinone ...

海胆是一类广泛分布于全球海洋中的棘皮动物，具有重要的生态、营养和药用价值。近年来，海胆因其富含高品质蛋白质、不饱和脂肪酸、多糖、类胡萝卜素及多种微量元素而受到广泛关注，尤其是其生殖腺作为海鲜珍品在食品工业中具有重要地位。科学研究表明，海胆体内的多种生 ...

Airborne quinones contribute to adverse health effects of ambient particles probably because of their ability to generate hydroxyl radicals (·OH) via redox cycling, but the mechanisms remain unclear.