Triphenylphosphine → Ethyl 3-[4-(2-t-butoxycarbonylaminoethoxy)-3-nitrophenyl]-2-phenoxypropionate

Participants

Reaction Steps

In a similar manner to that described in Example 122, a reaction was carried out using ethyl 3-(4-hydroxy-3-nitrophenyl)-2-phenoxypropionate (270 mg), which is the product of Reference example 53(a), t-butyl 2-hydroxyethylcarbamate (322 mg), triphenylphosphine (535 mg) and a solution of diethylazodicarboxylate in toluene (40%, 0.93 ml) and the reaction mixture was treated to afford the desired compound (349 mg) as a colorless oil.

Provenance & Evidence