Six new phragmalins, moluccensins H−M (1−6), two new andirobin-type limonoids, moluccensins N and O (7, 8), and two new tirucallane derivatives, moluccensins P and Q (9, 10), were isolated from seeds of an Indian mangrove, Xylocarpus moluccensis, together with the known compound 3β,22S-dihydroxytirucalla-7,24-dien-23-one. The structures of these compounds were established on the basis of spectroscopic data. Moluccensins H−L were phragmalins with a C-30 carbonyl group, and moluccensin M was a unique ring-D-opened 16-norphragmalin. Moluccensins H−J possess conjugated Δ^8,9 and Δ^14,15 double bonds, moluccensins K and L contain a Δ^8,14 double bond, and moluccensin M has a characteristic C₁₅−C₃₀ linked five-membered lactone ring. Moluccensins H and I showed moderate insecticidal activity against the fifth instar larvae of Brontispa longissima (Gestro) at a concentration of 100 mg/L.

中文翻译：

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克里希纳红树林，木果的种子中的柠檬苦素类和Tirucallane衍生物

六个新phragmalins，moluccensins H-M（1- 6），两个新的andirobin型柠檬苦素，moluccensins N和O（7，8）和两个新tirucallane衍生物，moluccensins P和Q（9，10），从分离印度红树林的木瓜，木犀草，以及已知的化合物3β，22 S -dihydroxytirucalla-7,24-dien-23-one的种子。这些化合物的结构是根据光谱数据确定的。Moluccensins H–L是具有C-30羰基的芦苇，而Moluccensin M是独特的D环开环的16-norphragmalin。Moluccensins H-Ĵ具有共轭Δ ^8,9和Δ ^14,15在双键中，moluccensins K和L包含一个^Δ8,14双键，moluccensin M具有一个特征性的C ₁₅ -C ₃₀连接的五元内酯环。Moluccensins H和I在100 mg / L的浓度下对长白僵菌（Gestro）的五龄幼虫表现出中等的杀虫活性。