Synthetic and biosynthetic studies of porphyrins. Part 9. Synthesis of isocoproporphyrin, dehydroisocoproporphyrin, and de-ethylisocoproporphyrin
作者:Anthony H. Jackson、Timothy D. Lash、David J. Ryder
DOI:10.1039/p19870000287
日期:——
The title compounds, which were excreted by patients suffering from porphyria cutanea tarda or rats poisoned with hexachlorobenzene have been synthesized by the b-oxobilane route. Isocoproporphyrin tetramethyl ester (7a) was prepared from pyrromethanes corresponding to rings DA and BC of the macrocycle, and the de-ethyl analogue (7b) was prepared in a similar fashion; acetylation of the latter followed
标题化合物,其通过从皮肤卟啉症或迟发性与六氯苯中毒大鼠的患者排出已经由合成b -oxobilane路线。由对应于大环的DA和BC环的吡咯甲烷制备异卟啉四甲酯(7a),以类似方式制备脱乙基类似物(7b)。后者的乙酰化,然后还原和脱水,然后得到脱氢异卟啉四甲基酯(7d)。合成中产生的少量副产物已显示是通过BC吡咯甲烷的重排而产生的。