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This report describes the stereoselective synthesis of 3-azido-tetralins, -chromanes, and -tetrahydroquinolines via a tandem… Expand Functional group taxonomy provides a powerful conceptual framework to classify and predict the chemical reactivity of molecular… Expand Research in the hasubanan and acutumine alkaloid fields up to 1970 was discussed under "morphine alkaloids" in Volume 13 of this… Expand We describe a general strategy to prepare the hasubanan and acutumine alkaloids, a large family of botanical natural products… Expand All together! A unified synthetic strategy has resulted in the first enantioselective total syntheses of the natural products 8… Expand Four new hasubanan-type alkaloids, cepharatines A-D (1-4), were isolated from the leaves and stems of Stephania cepharantha, and… Expand OBJECTIVE
To study the hasubanan type alkaloids in Stephania hernandifolia.
The dried herbs of S. hernandifolia. were… Expand 二不平常的代替 nitro 的 hasubanan 类型碱， stephalonines J (1 ) 和 K (2 ) 和十已知的碱， protostephanine， dehydrostephanine，(?)-stephanine… Expand The structure of hasubanonine was reexamined and the complate constitution (IIc) including the absolute stereostructure was… Expand