Calotetrapterins A-C, three new pyranoxanthones and their cytotoxicity from the stem bark of Calophyllum tetrapterum Miq

by Mulyadi Tanjung, Tjitjik Srie Tjahjandarie, Ratih Dewi Saputri, Baharrani Dwi Kurni, Muhammad Faisal Rachman, Yana Maolana Syah
Published 2019