Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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Outline of Final Research Achievements |
We have developed a method for construction of the hydrophenanthrene skeleton by exploiting an intramolecular Diels-Alder reaction of isobenzofurans generated oxidatively from phthalan derivatives having a multiple bond at a suitable position. The cycloaddition reaction in our system was found to be reversible. After considerable experimentation with regard to the functionalization of oxabridged cycloadducts, regioselective allylation was realized upon activation with a Lewis acid, culminating in the formal total synthesis of morphine.
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