Structures and stereochemical assignments of some novel chiral synthons derived from the biotransformation of 2,3-dihydrobenzofuran and benzofuran by Pseudomonas putida
作者:Derek R. Boyd、Narain D. Sharma、Rosemary Boyle、John F. Malone、Jagdeep Chima、Howard Dalton
DOI:10.1016/s0957-4166(00)80242-6
日期:1993.6
ring to yield (4R,5S)-cis-4,5-dihydroxy-4,5-dihydrobenzofuran. Bacterial metabolism of benzofuran was found to occur in the carbocyclic ring to form (6S,7S)-cis-6,7-dihydroxy-6,7-dihydrobenzofuran and its dehydration product, 6-hydroxybenzofuran. Dioxygenase-catalysed cis-dihydrodiol formation in the heterocyclic ring of benzofuran (to give cis-2,3-dihydroxy-2,3-dihydrobenzofuran as a transient intermediate)
使用恶臭假单胞菌UV4完整细胞代谢2,3-二氢苯并呋喃主要产生(3S)-3-羟基-2,3-二氢苯并呋喃,然后将其氧化成不稳定的中间体(3S,4R,5S)-3,4 ,5-三羟基-2,3,4,5-四氢苯并呋喃。该顺式,顺式-三醇自发脱水在碳环上生成(3S)-3,5-二羟基2,3-二氢苯并呋喃,在杂环上生成(4R,5S)-顺式-4,5-二羟基-4,5-二氢苯并呋喃。发现苯并呋喃的细菌代谢发生在碳环中,形成(6S,7S)-顺式-6,7-二羟基-6,7-二氢苯并呋喃及其脱水产物6-羟基苯并呋喃。双加氧酶催化的顺式提出了在苯并呋喃的杂环中形成-二氢二醇(以产生顺式-2,3-二羟基-2,3-二氢苯并呋喃作为过渡中间体)来说明(1R)-1,2-二羟基-1-的出现(2'-羟基苯基)乙烷作为苯并呋喃的主要代谢产物。顺式-4,5-二羟基-4,5-二氢苯并呋喃和顺式-6,7-二羟基-6,7-二氢苯并呋喃是潜在有价