吡咯及其同系物主要存在于骨焦油中，煤焦油中存在的量很少。吡咯可由骨焦油分馏取得；或用稀碱处理，再用酸酸化后分馏提纯。它是含有一个氮杂原子的五元杂环化合物，其分子式为C4H5N。
substituted 2-Ethoxy carbonxyl pyrrole is an very important intermediate of the synthesis of porphyrins.
取代吡咯2—甲酸乙酯是一种很重要的卟啉化合物合成中间体。
参考来源 - 3The influence factors in the synthesis of intermediates and Chlorfenapyr were meticulously investigated and the reaction conditions were bettered. Finally, some satisfactory results have been obtained.
本文还详细考察了中间体和目标化合物吡咯胺合成中的影响因素，优化了反应条件，取得令人满意的结果。
参考来源 - 吡咯胺及双（1，4The first total synthesis of marine natural product Neolamellarin A with pyrrole as the core skeleton was accomplished.
本论文首次完成了以吡咯为核心骨架的海洋天然产物Neolamellarin A的全合成。
参考来源 - 咔啉类和吡咯类海洋生物碱及其类似物的设计、合成与生物活性研究·2,447,543篇论文数据，部分数据来源于NoteExpress
四个胆色素原分子结合形成一个线性四吡咯。
Four molecules of porphobilinogen combine to form a linear tetrapyrrole.
灵菌红素是由若干种细菌特别是粘质沙雷菌产生的一种红色吡咯色素。
Prodigiosin is an intensely red pyrrole pigment produced by several bacteria, most notably, Serratia marcescens.
士的宁用于杀灭啮齿动物，而吡咯里西啶类生物碱则具有较强的杀菌活性。
Strychnine is used to kill rodents and pyrrolizidine alkaloids have significant activity against microbes.
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