rac-3-Methoxy-6-oxo-N-methylmorphinan was synthesized from 1-(p-methoxybenzyl)-2-methyl-6-oxo-Δ9, 10-octahydroisoquinoline and also from 1-(p-methoxybenzyl)-2-methyl-6-oxo-Δ5, 10-octahydroisoquinoline by the action of 85% phosphoric acid according to Grewe's cyclization, respectively. 1-(p-Methoxybenzyl)-2-methyl-6, 6-ethylenedioxy-Δ9, 10-octahydroisoquinoline, which was used as a starting material, was prepared from 2-(p-methoxybenzyl)-2-methyl-6, 6-ethylenedioxy-Δ9, 10-octahydroisoquinolinium chloride by means of Stevens'rearrangement.
rac-3-甲氧基-6-氧代-N-甲基
吗啡喃由 1-(对甲氧基苄基)-2-甲基-6-氧代-Δ9、10-八氢
异喹啉以及 1-(对甲氧基苄基)-2- 合成根据Grewe环化反应,分别通过85%
磷酸的作用生成甲基-6-氧代-Δ5、10-八氢
异喹啉。 1-(对甲氧基苄基)-2-甲基-6, 6-乙撑二氧基-Δ9, 10-八氢
异喹啉作为起始原料,由2-(对甲氧基苄基)-2-甲基-6, 6制备-亚乙二氧基-Δ9, 10-八氢
异喹啉氯化物,通过史蒂文斯重排得到。