Organic compounds -- part of the class 532-570 series – Organic compounds – Four or more ring nitrogens in the bicyclo ring system
Patent
1978-11-30
1980-07-01
Jiles, Henry R.
Organic compounds -- part of the class 532-570 series
Organic compounds
Four or more ring nitrogens in the bicyclo ring system
544363, 546157, 546158, 42424854, 424250, 424258, C07D41312
Patent
active
042107539
ABSTRACT:
Carbostyril compounds represented by the formula (I): ##STR1## wherein R.sub.1 represents a hydrogen atom, R.sub.2 represents a hydrogen atom, a phenylalkyl group, an alkoxyalkyl group, a hydroxyalkyl group, an alkylcarbonyl group, an alkynyl group, R.sub.3 and R.sub.4 each represents a hydrogen atom, a heterocyclic alkyl group or R.sub.3 and R.sub.4 can form, when taken together with the nitrogen atom to which they are attached, a 5- or 6-membered heterocyclic ring which may contain a nitrogen atom or an oxygen atom as an additional hetero atom, the 3,4-bond of the carbostyril nucleus represents a single or double bond, pharmaceutically acceptable acid addition salts thereof, and process for preparing the same.
REFERENCES:
patent: 4072683 (1978-02-01), Nakagawa et al.
patent: 4147869 (1979-04-01), Nakagawa et al.
Nakagawa Kazuyuki
Tominaga Michiaki
Tone Hitoshi
Jiles Henry R.
Otsuka Pharmaceutical Co. Ltd.
Ramsuer R. W.
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