| PATENT ASSIGNEE'S COUNTRY | USA |
| UPDATE | 10.99 |
| PATENT ASSIGNEE | Boulder Scientific |
| PATENT CLAIMS |
(i) Reacting 2,3-dihydro-1-oxocyclopentaphenanthre ne with tosylhydrazide wherein first reaction mixt contg the tosylhydrazone compd (I) is obtained (ii) Reacting (I) with sec. amine & BuLi in mixed toluene & THF medium wherein second reaction mixt contg 1-H-cyclopentaphenanthrene is obtained |
| PATENT PHOTOCOPY | Available on request |
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