| 摘要 |
<p>Cpds R' = H or Me R2,R3 and R4 = Me or Et and n = 1, 2 or 3. Antivirals, active vs. herpes, and vaccinia virus. N-methyl-2-pyrrolidinone diethylacetal (35 ml) was added to II (5.0 g.) in N-methyl-2-pyrrolidinone (100 ml), stirred 20 mins., left 3 hrs. in darkness, and pptd. into Et2O (21.), giving I, m.p.178-180 deg. (from CH2Cl2-MeOH-Et2O).</p> |
