Chloroiodomethane → HCID 178486720, compound

Participants

Reaction Steps

The product of Example 18, 8-(6,7-dimethoxy-isoquinolin-4-ylmethyl)-1-methyl-3-(2-methyl-allyl)-3,7-dihydro-purine-2,6-dione (100 mg, 0.24 mmol) is suspended in 1,2-dichloroethane (30 ml). Diethyl zinc (1M hexane solution, 1.2 ml, 1.20 mmol) is added, followed by chloroiodomethane (0.174 ml, 0.24 mmol) and the reaction is stirred at ambient temperature for 1 hour, prior to quenching with saturated aqueous NH4Cl. After extraction with chloroform, the organic phase is washed with water, dried over MgSO4 and evaporated. Purification by preparative HPLC affords 8-(6,7-dimethoxyisoquinolin-4-ylmethyl)-1-methyl-3-(l -methyl-cyclopropylmethyl)-3,9-dihydro-purine-2,6-dione, [MH]+ 436.

Provenance & Evidence