“…The distribution of phragmalin-class limonoids ( C295–C669 ) in plants is similar to mexicanolide-class and is almost concomitant, except that phragmalins are mainly present in the genus Chukrasia (138, 37.4%, accounts for 93% of limonoids from the genus Chukrasia ). 69,262,267–286 The genera Xylocarpus (59, 16.0%), 36,55,56,58,72,83,128,207,210,215,217,229,234,235,242,253,287–291 Trichilia (47, 12.7%), 62,233,247,292–297 and Swietenia (35, 9.5%) 219,246,248,298–302 also provide abundant phragmalin-class limonoids (Table S1.12†). The rest, about a quarter of phragmalins, are isolated from 10 genera.…”