Reaktion #1612369

Reaktionsgleichung

(2′R,4R)-5,5-difluoro-5,5″,6,6″-tetrahydro-4″H-dispiro[1,3-oxazine-4,4′-chromene-2′,3″-pyran]-2,6′-diamine

intermediate B7.5

(2′R,4R)-5,5-difluoro-5,5″,6,6″-tetrahydro-4″H-dispiro[1,3-oxazine-4,4′-chromene-2′,3″-pyran]-2,6′-diamine

5-cyanopicolinic acid

→

title compound

Ausbeute 64.0%

N-[(2′R,4R)-2-Amino-5,5-difluoro-5,5″,6,6″-tetrahydro-4″H-dispiro[1,3-oxazine-4,4′-chromene-2′,3″-pyran]-6′-yl]-5-cyanopyridine-2-carboxamide

Ausbeute 64.0%

Reaktionsbedingungen

Vorschrift

The condensation of (2′R,4R)-5,5-difluoro-5,5″,6,6″-tetrahydro-4″H-dispiro[1,3-oxazine-4,4′-chromene-2′,3″-pyran]-2,6′-diamine (intermediate B7.5) and 5-cyanopicolinic acid yielded the title compound (64% yield) as a yellow solid. MS (ISP): m/z=470.3 [M+H]+.

Quelle