Abstract The chemical investigation of the nonpolar constituents of a methanol extract of the bulbs of Boophone haemanthoides yielded ten known compounds as minor constituents. The compounds were identified as stigmast-4-ene-3,6-dione (1); cholest-4-en-3-one (2); (22E)-stigmast-4,22-dien-3-one (3); stigmast-4-en-3-one (4); 6β-hydroxystigmast-4-en-3-one (5); 6β-hydroxycholest-4-en-3-one (6); cycloartenol (7); acetovanillone (8); tyrosol (10) and 3-hydroxy-1-(4-hydroxyphenyl)-1-propanone (11). The isolation of compound 7 with other cholestane (2, 6) and stigmastane (1, 3–5) derivatives aligned with the biosynthetic pathway of plant steroids through 7 from squalene 2,3-epoxide. This is the first report on the isolation and identification of these compounds from B. haemanthoides and 1–6 and 11 for the family Amaryllidaceae.

中文翻译：

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Boophone haemanthoides FM Leight（石蒜科）的三萜和其他微量化学成分

摘要 对 Boophone haemanthoides 灯泡的甲醇提取物的非极性成分进行化学研究，得出了 10 种已知化合物作为次要成分。该化合物被鉴定为 stigmast-4-ene-3,6-dione (1)；cholest-4-en-3-one (2); (22E)-stigmast-4,22-dien-3-one (3); stigmast-4-en-3-one (4); 6β-hydroxystigmast-4-en-3-one (5); 6β-羟基胆甾醇-4-en-3-one (6); 环木蒿醇 (7); 乙酰香草酮 (8); 酪醇 (10) 和 3-羟基-1-(4-羟基苯基)-1-丙酮 (11)。化合物 7 与其他胆甾烷 (2, 6) 和柱头烷 (1, 3–5) 衍生物的分离与植物类固醇通过 7 从角鲨烯 2,3-环氧化物的生物合成途径一致。这是从 B. haemanthoides 和石蒜科 1-6 和 11 中分离和鉴定这些化合物的第一份报告。