Method for the synthesis of huperzine A and analogs thereof and

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

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546110, 546111, 546 97, 514290, C07D22106, C07D22116, C07D22122

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056633440

ABSTRACT:
The present invention relates to a method for the synthesis of certain bridged fused ring pyridines. Such bridged fused ring pyridines can be converted to huperzine A and analogs of huperzine A. The present invention also covers such bridged fused ring pyridines, compounds utilized for the preparation of the bridged fused ring pyridines and analogs of huperzine A. The compounds are capable of inhibiting cholinesterase enzymes and, therefore, are useful as pharmaceutical agents for treatment of disorders involving cholinesterase enzymes. Examples of such disorders include myasthenia gravis, Alzheimer's dementia and the improvement of senile memory loss.

REFERENCES:
patent: 5177082 (1993-01-01), Yu et al.
Chen, C.H and Lee, S.S., 1984, "Studies on the Bioactive Lycopodium alkaloid--the Structure and Activity of Isoselagine From Lycopodium serratum var. Iongipetiolatum", CA 101:143940w of T'ai-wan Yao Hsueh Tsa Chih 36(1):1-7.
Chen, S. and Xue, Z., 1987, "The Effect of Fordine on Learning and Memory in Rats", CA 108:143270x of Yaoxue Xuebao 22(11):801-806 (Acta Pharm. Sinica 22(11):801-806).
Gravel, D. et al., 1984, "Total Regiospecific Synthesis of the Selagine Tricyclic Ring System", Can. J. Chem. 62:2945-2947.
Kende, A.S. et al., 1984, "New Tactics in Heterocyclic Synthesis", Heterocycles 21(1):91-106.
Liu, J. et al., 1986, "Chemistry of Huperzine A and B", CA 107:115821p of Huaxue Xuebao 44(10):1035-1040.
Liu, J. et al., 1986, "The Structures of Huperzine A and B, Two New Alkaloids Exhibiting Marked Anticholinesterase Activity", CA 105:75908x of Can. J. Chem. 64:837-839.
Nyembo, L. et al., 1976, "Alkaloids of Lycopodium gnidioides and Lycopodium verticillatum", CA 86:90108u of Bull. Soc. Chim. Belg. 85(8):595-604.
Qian, L. and Ji, R., 1989, "A Total Synthesis of (+-)-Huperzine A", CA 111:214783s of Tetrahedron Lett. 30(16):2089-2090.
Tang, X. et al., 1986 "Effects of Huperzine A on Learning and Retrieval Process of Discrimination Performance in Rats", CA 106:12878n of Zhongguo Yaoli Xuebao 7(6):507-511.
Valenta, Z. et al., 1960, "Structure of Selagine" CA 54:21167-21168 of Tetrahedron Lett. 10:26-33.
Wang, Y.-E. et al., 1988,"Pharmacokinetics of Huperzine A in Rats and Mice" Acta Pharm. Sinica 9(3):193-196.
Yuan, S.Q. and Wei, T.T., 1988, "Alkaloids of Huperzia serrata (Thunb.) Trev.", CA 110:92014y of Yaoxue Xuebao 23(7):516-520.

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