TY - BOOK AU - Dias,Merita Nirmali TI - Isolation and Characterisation of 15x,22β -Dihydroxytingenone,A Biogenetically Significant Quinone-Methide Triterpenoid from cassine balae(Celastraceae) U1 - 541.393 DIA PY - 1989/// CY - Colombo PB - Ichemc KW - biogenetic ER -