HCID 18601660, compound → Dihydrocodeine

Participants

Reaction Steps

60.0 g of dihydrocodeine phosphate was dissolved in 600 ml of deionized water, and 378.8 g of Amberlite IRP 69 was added while stirring. The mixture was stirred for 1 hour to yield a dihydrocodeine-resin complex. Then, the complex was treated with PEG and coated with the diffusion barrier material similarly as in Example 1 to obtain a coated dihydrocodeine-resin complex.

Provenance & Evidence