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Diterpenoids of Roylea calycina(Roxb.) Briq.

Prakash, Om and Bhakuni, Dewan S and Kapil, Randhir S and Rao , Subba GSR and Ravindranath, Bhagavathula (1979) Diterpenoids of Roylea calycina(Roxb.) Briq. In: Perkin Transactions 1 (5). pp. 1305-1308.

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The structures of three new diterpenes, calyone, calyenone, and precalyone, isolated from the aerial portion of Roylea calycina have been shown to be 3-acetoxy-15,16-epoxy-9-hydroxylabda-1 3(16),14-dien-7-one (2), 3-acetoxy-15,16-epoxylabda-8,13(16),14-trien-7-one (5), and 3-acetoxy-9,13;15,16-diepoxylabda-14-en-7-one (7), respectively, by chemical and spectroscopic studies. Precalyone showed antitumor activity against P-388 lymphocytic leukaemia.

Item Type: Journal Article
Publication: Perkin Transactions 1
Publisher: Royal Society of Chemistry
Additional Information: Copyright of this article belongs to Royal Society of Chemistry.
Department/Centre: Division of Chemical Sciences > Organic Chemistry
Date Deposited: 15 Dec 2010 05:45
Last Modified: 15 Dec 2010 05:45
URI: http://eprints.iisc.ac.in/id/eprint/34427

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