occurrence and distribution of tropane and biogenetically related pyrrolidine alkaloids in 18 Merremia species of paleo-, neo-, and pantropical occurrence have been studied. The extensive GC-MS study included members of almost all sections of the genus and has been carried out with epigeal vegetative parts as well as with roots. It comprises altogether 74 tropanes and 13 pyrrolidines including nicotine
已经研究了古、新和泛热带地区的 18 种 Merreemia 物种中托烷和生物遗传相关的吡咯烷生物碱的发生和分布。广泛的 GC-MS 研究包括该属几乎所有部分的成员,并且已经对表生植物部分以及根进行了研究。它包括总共 74 种托烷和 13 种吡咯烷,包括尼古丁。除了已经从茄科物种中已知的达美汀外,该研究还导致了四种新型 3alpha-acyloxytropanes、merresectines AD 的分离(分别来自 M. dissecta 和 M. guerichii)和结构解析(光谱数据):3alpha-(4-甲氧基苯甲酰氧基)nortropane (A), 3alpha-kurameroyloxytropane (B), 3alpha-nervogenoyloxytropane (C), 3α-[4-(β-D-吡喃葡萄糖基氧基)-3-甲氧基-5-(3-甲基-2-丁烯基)苯甲酰氧基]托烷(D的β-d-葡萄糖苷)。此外,新型