| 摘要 |
<p>Improved method for 6alpha-deoxytetracycline (I) and its salts. R=H or OH; X=H or Cl. Cat:- a noble metal catalyst, e.g Pd, Pt, Rh or Ru on a carrier, and pretreated with a cat. poison, e.g CO, or quinoline-S. The total yield and the ratio alpha:beta are both greater than hitherto.</p> |
