Isolation of lanceolarin, a new glycoside of biochanin-A, from the root-bark of dalbergia lanceolaria

✍ Scribed by A. Malhotra; V.V.S. Murti; T.R. Seshadri

• Publisher: Elsevier Science
• Year: 1965
• Tongue: French
• Weight: 219 KB
• Volume: 6
• Category: Article
• ISSN: 0040-4039
• DOI: 10.1016/s0040-4039(01)89210-8

✦ Synopsis

The trees belonging to the genus Dalberaia are Important In msnp respects. Many of them provide excellent timber and one tree, Dalbersla lanceolarla, acts as a host to the economlcally Important lac insect. The chemlaal study of these trees has revealed the existence of novel structures of organic compcunds viz. 4-phenyl ccumarlusl, dalbergenones 2-S and lsoflavcnesblo. The presence of biochanti-A 7-glucoside (slssotrln) in the leaves of Jhlbersia glssoo has been recorded earlle+r12 and 'I-methyltectorlgenln 4'-glucoside ha8 recently been fcund in the pods of the same tree 13 . We wish to report the occurrence of 'ir-aploglucoslde of bieahanin-A, named lanceolarln, In the root-bark of Dalberala ealaria. This is another example of the occurrence of 1 the rare sugar aDlOse in glycosldic combination, the only instances earlier known be.lng 14,X aplin and graveobloside-A and -B16 and whereas the earlier compounds were flavones, the present example belongs to the isoflavone group.