Hexamethyldisilazane → 2-Sulfanylidene-1-(2,3,5-tri-O-benzoyl-beta-D-ribofuranosyl)-2,3-dihydropyrimidin-4(1H)-one

Participants

Reaction Steps

0.64 g. (5 mmol) of 2-thiouracil, 2.52 g. (5 mmol) of 1-O-acetyl-2,3,5-tri-O-benzoyl-β-D-ribofuranose were combined in 75 ml. of absolute acetonitrile with 0.65 g. (4 mmol) of HMDS, 0,43 g. (4 mmol) of TCS, and 1.56 g. (6 mmol) of SnCl4 and after 7 hours at 24° C. the mixture was worked up as set forth in Example 1, thus obtaining 64% of crystalline 2-thiouridine tribenzoate.

Provenance & Evidence