Methyl iodide → 4-Chloro-7-[3,5-bis-o-(2,4-dichlorophenylmethyl)-2-c,2-o-dimethyl-beta-d-ribofuranosyl]-7h-pyrrolo[2,3-d]pyrimidine

To a pre-cooled (0° C.) solution of the compound from Example 62, Step D (618 mg, 1.0 mmol) in THF (8 mL) was added methyl iodide (709 mg, 5.0 mmol) and NaH (60% in mineral oil) (44 mg, 1.1 mmol). The resulting mixture was stirred overnight at rt and then poured into a stirred mixture of saturated aqueous ammonium chloride (50 mL) and dichloromethane (50 mL). The organic layer was washed with water (50 mL), dried (MgSO4) and evaporated in vacuo. The resulting crude product was purified on silica gel using ethyl acetate/hexane as the eluent. Fractions containing the product were pooled and evaporated in vacuo to give the desired product (735 mg) as a colorless foam.

1. washThe organic layer was washed with water (50 mL)
2. dry with materialdried (MgSO4)
3. customevaporated in vacuo
4. customThe resulting crude product was purified on silica gel
5. additionFractions containing the product
6. customevaporated in vacuo

ORD-Eintrag

ord-97b64241137c4ca5812dc2f19dc41ccb

Quelldatensatz

uspto-grants-2007_04

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US07202224B2