A new instable aristolane type sesquiterpene ketone, gansongone ( 1), was isolated from the fresh underground parts of NARDOSTACHYS CHINESIS Batalin (Valerianaceae), growing in the province Sichuan (China). The structure of 1 was elucidated by spectroscopic and chemical methods. The structure of the corresponding alcohol 2, which was also found in N. CHINENSIS and formerly regarded as 9-aristolene-1alpha-ol ( 5) has to be revised to l(10)-aristolene-9beta-ol ( 2) from results of 2D-NMR-spectroscopy and oxidation to 1. Besides 1 and 2, the following compounds have been identified in the ethanol extract of the fresh plant material of N. CHINENSIS: nardosinone, nardosinondiol, deoxonarchinol A, beta-sitosterol, oleanolic acid, ethyl beta- D-glucopyranoside.

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~moc-Aniinosdurc-TDO-cstcr 3 lassen sich durch Unisatz von Esters of ~~9-Fluorcnylmcthosycarbonyl) Amino Acids with Fmoc-Aminosiiurcn 1 mit dem cyclischen Carbonat 2 darstellcn. J-Hydroxy-3-oxo-2,5-diphenyI-2,3-dihydrothiophrne I .I -Dioside Sic bictcn hci Peptidsynlhesen Vorteile. die am Beispiel der Dar-(Fmoc-Amino Acid TDO Lsters) and Their llw in Solid Phase stellung von Leucylalanylvalylglycin (7) an einern p-Alkoxyben-Peptide Synthesis rylalkohol-Harz aufgezcipl werden.Fmoc-Amino acid TDO cslcrs 3 arc. prcparcd b! rtac'tioii 01 Fnioc-omino acids 1 with the cyclic citrbonaic 2. Thcir application in pcptide synthesis is demonstrated by the prcpi-ation of leucylalanylvalylglycine (7) at a p-alkoxybcnzyl alcohol resin.

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