中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 2-[(3aS,4S,5R,7aS)-7-bromo-4-hydroxy-2,2-dimethyl-3a,4,5,7a-tetrahydro-1,3-benzodioxol-5-yl]acetonitrile | 1315471-04-5 | C11H14BrNO3 | 288.141 |
—— | O-[(3aS,4S,5R,7aS)-7-bromo-5-(cyanomethyl)-2,2-dimethyl-3a,4,5,7a-tetrahydro-1,3-benzodioxol-4-yl] methylsulfanylmethanethioate | 1315471-06-7 | C13H16BrNO3S2 | 378.311 |
—— | (1R,2S,5S,6R)-3,6-dibromo-1,2-O-isopropylidenecyclohex-3-ene-1,2,5-triol | 183674-17-1 | C9H12Br2O3 | 328.0 |
The enzymatically derived and enantiopure cis-1,2-dihydrocatechol 1 has been converted, over 14 one-pot operations, into the (+)-form of the alkaloid narseronine (2). The present study, which complements earlier work that established a route from metabolite 1 to enantiomer (–)-2, involves an N-bromosuccinimide/tri-n-butyltin hydride-mediated cyclisation reaction to construct the unsaturated B-ring lactone of the target compound.