반응 #1810548
ord-6c5ee2fe61d4489a8d2936f7af16dd36
반응 방정식
반응 조건
후처리
- 1기타at room temperature
- 2여과The reaction mixture was filtered
- 3기타the filtrate was evaporated to dryness
실험 절차
6,9-Dihydroxy-8-methylene-14-oxa-1,11-diazatetracyclo[7.4.1.02,7.010,12 ]tetradeca-2,4,6-triene-4-carbaldehyde (5 mg) was dissolved in methanol (2 ml), and the solution was subjected to catalytic reduction for 120 minutes using 10% palladium on carbon in hydrogen gas under atmospheric pressure at room temperature. The reaction mixture was filtered and the filtrate was evaporated to dryness to give an oily residue of 4-hydroxymethyl-8-methyl-14-oxa-1,11-diazatetracyclo[7.4.1.02,7.010,12 ]tetradeca-2,4,6-triene-6,9-diol. This oil was dissolved in pyridine (1 ml) and to this solution was added acetic anhydride (20 μl), followed by allowing to stand at room temperature overnight. The resultant mixture was evaporated to dryness to give an oil, which was subjected to preparative thin layer chromatography. Development was carried out with a mixture of methanol and chloroform (5:95 v/v) to afford 4-acetoxymethyl-11-acetyl-9-hydroxy-8-methyl-14-oxa-1,11-diazatetracyclo[7.4.1.02,7.010,12 ]tetradeca-2,4,6-trien-6-yl acetate (3 mg).