“…A naphthoquinone, glycoquinone ( 219 ) and acridone alkaloid, glycocitrine-III ( 220 ) (Figure 16) [152], four hydroquinone diglycoside acyl esters, glypentosides A–C ( 221 – 223 ) and seguinoside F ( 224 ) [153], carbazole alkaloid, 4-(7-hydroxy-3-methoxy-6-methyl-9 H -carbazol-4-yl)but-3-en-2-one ( 225 ), two dimeric carbazole alkaloids, bisglybomine B ( 226 ) and biscarbalexine A ( 227 ), together with glybomine B, glycoborinine, carbalexine A, 4,8-dimethoxy-1-methyl-3-(3-methylbut-2-en-1-yl)-quinolin-2(1 H )-one, 4,8-dimethoxyfuro [2,3- b ]quinoline, skimmianine and arborinine [154], three phenolic glycosides, glycopentosides D–F ( 228 – 230 ) [155] and two carbazole indole-type dimeric alkaloids, glycosmisines A ( 231 ) and B ( 232 ) [156] were isolated from the stems of G. pentalphylla . Alkaloid, glycophymine ( 233 ) and an amide, glycomide from the flowers of this species [157] and derivative of carbazole alkaloid, glycozolinine ( 234 ) was identified from the seeds of G. pentaphylla [158].…”