Synthesis of intermediates useful in preparing tricyclic compoun

Details Synthesis of intermediates useful in preparing tricyclic compoun Synthesis of intermediates useful in preparing tricyclic compoun

1998-03-23

1999-12-07

Kight, John

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D22106

Patent

active

059986204

ABSTRACT:
The invention relates to a process for preparing a compound of the formula ##STR1## comprising reacting a bromo-substituted pyridine with an amine of the formula NHR.sup.5 R.sup.6, reacting the resulting amide with an iodo-halomethyl-substituted compound and cyclizing the resultant product, wherein R, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are as defined in the specification; also claimed are a compound of the formula ##STR2## and a process for preparing it from the corresponding halo-substituted benzoic acid.

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Basha et al, Tet. Lett., 48 (1977), pp. 4171-4174.

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