sentences:  A recent patent review has shown that the general consensus among researchers is that allosteric inhibitors may provide a more regulatable anticoagulant.Some of the allosteric inhibitors discovered include DNA aptamers, benzofuran dimers,
  benzofuran trimers, as well as polymeric lignins.A new sulfated β-O4 lignin (SbO4L) has been discovered which has shown a dual mechanism of action for anti-thrombosis.