Process for the preparation of...

Details Process for the preparation of... Process for the preparation of...

2011-01-18

2011-01-18

Davis, Zinna N (Department: 1625)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

active

07872138

ABSTRACT:
The present invention is directed to a process for the synthesis of substituted-1,2,3,4-tetrahydroisoquinoline derivatives, useful as intermediates in the synthesis of pharmaceutical agents.

REFERENCES:
patent: 3499901 (1970-03-01), Hellerbach
patent: WO 2004/103997 (2004-12-01), None
patent: WO 2006/018309 (2006-02-01), None
Osbond, J. M, Journal of the Chemical Society (1951) pp. 3464-3475.
Heaney et al, Tetrahedron, (1995), 51(39), pp. 10737-10750.
Zhong, Marlon H., et als., “Improved and Practical Synthesis of 6-Methoxy-1,2,3,4-Tetrahydroisoquinoline Hydrochloride”, American Chemical Society/Organic Process Research & Development, vol. 11, No. 3, 2007, pp. 463-465.
Buck, Johannes S., “Some Substituted Tetrahydroisoquinoline Hydrochlorides”, J. Am. Chem. Soc., vol. 56, 1934, pp. 1769-1771.
Craig, L.E. et al., “Curariform Activity and Chemical Structure. III Synthesis in the 3-Indolylmethylamine Series”, J. Am. Chem. Soc., vol. 71, 1949, pp. 462-465.
Kalaus, Gy et al., “The Chemistry of Heterocyclic Pseudobasic Aminocarbinols, XXXVII”, Acta Chimica Academiae Scientiarum Hungarica, Budapest, HU, vol. 63, No. 4, 1970, pp. 443-445.
Ruchirawat, S. et al., “A Convenient Synthesis of Simple Tetrahydroisoquinolines”, Synthetic Communications, Marcel Dekker, Inc., Basel, CH, vol. 14, No. 13, 1984, pp. 1221-1228.

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