More specifically, {HEAD ~ the present invention} relates to {TAIL ~ a process} for the preparation of substantially optically pure cishexahydrodibenzofuran compounds including at least two chiral fused ring centers which comprises the acidic catalyzed stereospecific ring closure by the intra molecular inversion of a gamma, i.e. 2, carbon atom of a 2 phenol 
relates to
More specifically , { HEAD ~ the present invention } relates to { TAIL ~ a process } for the preparation of substantially optically pure cishexahydrodibenzofuran compounds including at least two chiral fused ring centers which comprises the acidic catalyzed stereospecific ring closure by the intra molecular inversion of a gamma , i.e. 2 , carbon atom of a 2 phenol
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH