New aliphatic esters and pyran derivatives isolated from stem bark of dalbergia sissoo roxb

الملخص EN

Phytochemical investigation of the ethanolic extract of the stem bark of Dalbergia sissoo led to the isolation of two new aliphatic esters and two new pyran derivatives and their structures have been elucidated as n-hexacosan-5-ol-1-yl propionate, n-tetracosan-5-ol-yl propionate, 7-hydroxy-8-methoxy-4-(2’-hydroxyphenyl)- [4H]-benzopyran (dalbergyl pyran) and 10, 12, 13-trihydroxy-11-methoxyanthracenyl- 15-18 [2H] pyran (anthracenyl pyran) on the basis of spectral data analyses and chemical reactions.