Process for preparation of 4H-4-oxo-quinolizine-3-carboxylic aci

Details Process for preparation of 4H-4-oxo-quinolizine-3-carboxylic aci Process for preparation of 4H-4-oxo-quinolizine-3-carboxylic aci

1997-02-26

1997-12-02

Rotman, Alan L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546112, C07D45502

Patent

active

056938136

ABSTRACT:
A process for the preparation of a compound having the formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, and R.sup.5 are defined, from an enamine by chain expansion and ring closure followed by additional derivatization, treatment with a 3-alkoxyl-acryloyl compound, another ring closure, and converting a hydroxyl group to a leaving group.

REFERENCES:
patent: 5599816 (1997-02-01), Chu et al.

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