Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2006-02-14
2006-02-14
Trinh, Ba K. (Department: 1625)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
active
06998494
ABSTRACT:
The present invention concerns processes for the preparation of each of the 4 diastereomers of formula (I)in stereochemically pure form from either of two enantiomerically pure precursors. The tetracyclic ringsystem having trans-fused five and seven membered rings is formed in an acid-catalysed cyclization reaction. The invention further relates to the thus obtained cis-fused tetracyclic alcohol intermediates, the methanamine end-products, the methanamine end-products for use as a medicine, in particular as CNS active medicines.
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patent: WO 97/38991 (1997-10-01), None
patent: WO 97/19317 (1999-04-01), None
Monkovic, I., et al., “Substituted Tetrahydrofurfurylamines as Potential Antidepressants,” Journal of Medicinal Chemistry, 1973, vol. 16, No. 4, pp. 403-407.
Brossette Thierry
Compernolle Frans Josef Cornelius
Guillaume Michel Joseph Maurice André
Hoornaert Georges Joseph Cornelius
Kozlecki Tomasz
Janssen Pharmaceutica N.V.
Trinh Ba K.
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