A novel glucopyranoside, 6-hydroxy-2-p-hydroxybenzylbenzofuran-7-C-.beta.-D-glucopyranoside of the formula 1 ##STR1## isolated from Pterocarpus marsupium and to a process for the isolation thereof is disclosed. The invention also relates to a pharmaceutical composition containing 6-hydroxy-2-p-hydroxybenzylbenzofuran-7-C-.beta.-D-glucopyranoside and to method for the treatment of diabetes using said compound.

Um glucopyranoside da novela, 6-hydroxy-2-p-hydroxybenzylbenzofuran-7-C-.beta.-D-glucopyranoside do ## do ## STR1 da fórmula 1 isolado do marsupium de Pterocarpus e a um processo para a isolação disso é divulgado. A invenção relaciona-se também a uma composição pharmaceutical que contem 6-hydroxy-2-p-hydroxybenzylbenzofuran-7-C-.beta.-D-glucopyranoside e ao método para o tratamento do diabetes usando composto dito.