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Phytochemical investigation of the gum resin of Ferula assafoetida resulted in the isolation and characterization of a new sesquiterpenoid coumarin, Saradaferin (1) named as [Decahydro-(3-alpha-hydroxy-4,4,10-trimethyl-8-methylene-9-naphthenyl)-alpha-hydroxymethyl] ether of umbelliferone.

The structure and stereochemistry of a new terpenoid ester, nardostachysin (1), isolated from the rhizomes of Nardostachys jatamansi, were established as the 7',8'-dihydroxy-4'-methylene hexahydrocyclopenta[c]pyran-1'-one-8'-methyl ester of 7, 9-guaiadien-14-oic acid, by spectral and chemical studies.

Terpenes U 0200 Studies on the Chemical Constituents of Nardostachys jatamansi DC (Valerianaceae). -[isolation and structure determination of the new sesquiterpene acid, nardin (I), and the new pyranocoumarin (II)] -(CHATTERJEE*, A.; BASAK, B.; DATTA, U.; BANERJI, J.; NEUMAN, A.; PRANGE, T.; Indian J. Chem., Sect. B: Org. Chem. Incl. Med. Chem. 44 (2005) 2, 430-433; Cent. Adv. Stud. Nat. Prod., Univ. Coll. Sci., Calcutta 700 009, India; Eng.) -A. Forchert 25-180