“…Three of the four alkaloids found in Gulipea bract eat^,^ (7), (8), and (9), were previously known as synthetic compounds ; and although the authors claim that this is the first report of their isolation from a natural source, 2-pentylquinoline (8) has in fact previously been isolated from Galipea oficinalis.20 The fourth alkaloid, (lo), also occurs in Galipea longzflora together with four other new alkaloids (1 1 >-( 14) and six known alkaloids (see Table 1). lo Two of the latter, cusparine (15) and 4-methoxy- (49) Skimmianine *4-Ethoxycarbonylquinolin-2-one ( 1 8) *5,7-Dimethoxy-4-(4-methoxyphenyl)quinolin-2-one (1 9) *8-Hydroxy-5,7-dimethoxy-4-(4-methoxyphenyl)quinolin-2-one (20) 2-pentylquinoline (1 6), were also found during earlier examinations of G. oficinalis.20 The alkaloids of G. bracteata inhibited the growth of lettuce seedlings, while compounds (8), (9), and especially (10) showed molluscicidal activity against Biomphalaria glabrata, an aquatic snail involved in the transmission of schistosomiasis. While the properties of the G. longzflora alkaloids were not examined, the investigation was undertaken in view of the traditional use of extracts of this plant in treating parasitic infestations.…”