1.1: N-ethyl-N,N-diisopropylamine / tetrahydrofuran / 0.5 h / 20 °C / Inert atmosphere 1.2: 20 h / 60 °C / Inert atmosphere 2.1: osmium(VIII) oxide; water; 4-methylmorpholine N-oxide / acetone / 44 h / 20 °C 3.1: sodium periodate / methanol; water / 0.5 h 4.1: tris-[2-carboxyethyl]-phosphine / water; acetonitrile / pH 7.4 / aq. phosphate buffer; Inert atmosphere 5.1: water; acetonitrile / pH 7.4 / aq. phosphate buffer; Inert atmosphere View Scheme

1.1: N-ethyl-N,N-diisopropylamine / tetrahydrofuran / 0.5 h / 20 °C / Inert atmosphere 1.2: 20 h / 60 °C / Inert atmosphere 2.1: osmium(VIII) oxide; water; 4-methylmorpholine N-oxide / acetone / 44 h / 20 °C 3.1: sodium periodate / methanol; water / 0.5 h 4.1: tris-[2-carboxyethyl]-phosphine / water; acetonitrile / pH 7.4 / aq. phosphate buffer; Inert atmosphere 5.1: water; acetonitrile / pH 7.4 / aq. phosphate buffer; Inert atmosphere 6.1: sulfuric acid; sodium nitrite / tetrahydrofuran; water / 1 h / 0 °C 6.2: 0 - 20 °C 7.1: dipyridinium dichromate / dichloromethane / 4 h / 20 °C View Scheme