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Generated: November 18, 2017

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Title: 3,4-Dihydrocarbostyril derivatives and process for producing the same
Abstract:Novel compounds represented by the formula ##STR1## wherein R.sup.1, R.sup.2, and R' and R" are defined as hereinafter, having a blocking activity on .beta.-adrenergic nerves, novel intermediates useful for synthesis thereof and processes for preparing the same are disclosed. When substitution is at the 5-position and R.sup.1 and R.sup.2 are hydrogen, R' and R" are not simultaneously hydrogen and a 1 to 4 carbon atom alkyl group in the claimed compound.
Inventor(s): Nakagawa; Kazuyuki (Tokushima, JP), Murakami; Nanami (Tokushima, JP), Yoshizaki; Shiro (Komatsujima, JP), Mori; Hideo (Tokushima, JP), Tominaga; Michiaki (Tokushima, JP)
Assignee: OtsukaPharmaceutical Co., Ltd. (Tokyo, JP)
Filing Date:Mar 14, 1978
Application Number:05/886,373
Claims:1. A 3,4-dihydrocarbostyril compound represented by the formula ##STR67## wherein R.sup.1 is selected from the group consisting of hydrogen straight or branched alkyl having 1 to 4 carbon atoms, phenylalkyl wherein the alkyl has 1 to 4 carbon atoms, and alkenyl having 2 to 4 carbon atoms, R.sup.2 is selected from the group consisting of hydrogen and acyl of the formula COR.sup.3 wherein R.sup.3 represents lower alkyl having 1 to 4 carbon atoms, phenyl or 3,4,5-trimethoxy phenyl, and R' and R" may be the same or different and each represents hydrogen, lower alkyl having 1 to 4 carbon atoms, phenylalkyl wherein the alkyl has 1 to 4 carbon atoms or cycloalkyl of 4 to 6 carbon atoms, or R' and R", when taken together with the nitrogen atom to which they are attached, may form a heterocyclic group selected from the group consisting of piperidino, piperazino and morpholino, said heterocyclic group being unsubstituted or substituted by alkyl of 1 to 4 carbon atoms, and pharmaceutically acceptable acid addition salts thereof, with the proviso that when substitution is at the 5-position and R.sup.1 and R.sup.2 are hydrogen and one of R' and R" is hydrogen, the other of R' and R" is not a 1 to 4 carbon atom alkyl group.

2. The compound of claim 1 wherein the heterocyclic group is N-methylpiperazino.

3. A 3,4-dihydrocarbostyril compound represented by the formula ##STR68## where R.sup.1 is selected from the group consisting of hydrogen, straight or branched alkyl having 1 to 4 carbon atoms, phenylalkyl wherein the alkyl has 1 to 4 carbon atoms, and alkenyl having 2 to 4 carbon atoms, R.sup.2 is hydrogen, and R' and R" may be the same or different and each represents hydrogen, lower alkyl having 1 to 4 carbon atoms, phenylalkyl wherein the alkyl has 1 to 4 carbon atoms or cycloalkyl of 4 to 6 carbon atoms or R' and R", when taken with the nitrogen atom to which they are attached may form a piperidino group, and pharmaceutically acceptable acid salts thereof, with the proviso that when substitution is as the 5-position and R.sup.1 is hydrogen and one R' and R" is hydrogen, the other of R' and R" is not a 1 to 4 carbon atom alkyl group.

4. A 3,4-dihydrocarbostyril compound represented by the formula ##STR69## wherein R.sup.1 is selected from the group consisting of hydrogen, straight or branched alkyl having 1 to 4 carbon atoms, phenylalkyl wherein the alkyl has 1 to 4 carbon atoms, and alkenyl having 2 to 4 carbon atoms, R.sup.2 is selected from the group consisting of hydrogen and acyl of the formula COR.sup.3 wherein R.sup.3 represents lower alkyl having 1 to 4 carbon atoms, phenyl or 3,4,5-trimethoxy phenyl, and R' and R" may be the same or different and each represents hydrogen, lower alkyl having 1 to 4 carbon atoms, phenylalkyl wherein the alkyl has 1 to 4 carbon atoms or cycloalkyl of 4 to 6 carbon atoms, or R' and R", when taken together with the nitrogen atom to which they are attached, may form a heterocyclic group selected from the group consisting of piperidino, piperazino and morpholino, said heterocyclic group being unsubstituted or substituted by alkyl of 1 to 4 carbon atoms, and pharmaceutically acceptable acid addition salts thereof, with the proviso that when R.sup.1 and R.sup.2 are hydrogen each of R' and R" is not hydrogen and is not a 1 to 4 carbon atom alkyl group.

5. A 3,4-dihydrocarbostyril compound represented by the formula ##STR70## where R.sup.1 is selected from the group consisting of hydrogen, straight or branched alkyl having 1 to 4 carbon atoms, phenylalkyl wherein the alkyl has 1 to 4 carbon atoms, and alkenyl having 2 to 4 carbon atoms, R.sup.2 is hydrogen, and R' and R" may be the same or different and each represents hydrogen, lower alkyl having 1 to 4 carbon atoms, phenylalkyl wherein the alkyl has 1 to 4 carbon atoms or cycloalkyl of 4 to 6 carbon atoms or R' and R", when taken with the nitrogen atom to which they are attached may form piperidino, and pharmaceutically acceptable acid salts thereof, with the proviso that when R.sup.1 is hydrogen each of R' and R" is not hydrogen and is not a 1 to 4 carbon atoms alkyl group.

6. A 3,4-dihydrocarbostyril compound represented by the formula ##STR71## wherein R.sup.1 is hydrogen, R.sup.2 is hydrogen, substitution is at the 6-,7- or 8-position, and one of R' and R" is hydrogen and the other of R' and R" is 1 to 4 carbon atom alkyl.

7. A 3,4-dihydrocarbostyril compound represented by the formula ##STR72## wherein R.sup.1 is selected from the group consisting of straight or branched alkyl having 1 to 4 carbon atoms, phenylalkyl wherein the alkyl has 1 to 4 carbon atoms, and alkenyl having 2 to 4 carbon atoms, R.sup.2 is selected from the group consisting of hydrogen and acyl of the formula COR.sup.3 wherein R.sup.3 represents lower alkyl having 1 to 4 carbon atoms, phenyl or 3,4,5-trimethoxy phenyl, and R' and R" may be the same or different and each represents hydrogen, lower alkyl having 1 to 4 carbon atoms, phenylalkyl wherein the alkyl has 1 to 4 carbon atoms or cycloalkyl of 4 to 6 carbon atoms, or R' and R", when taken together with the nitrogen atom to which they are attached, may form a heterocyclic group selected from the group consisting of piperidino, piperazino and morpholino, said heterocyclic group being unsubstituted or substituted by alkyl of 1 to 4 carbon atoms, and pharmaceutically acceptable acid addition salts thereof.

8. A 3,4-dihydrocarbostyril compound represented by the formula ##STR73## wherein R.sup.1 is selected from the group consisting of hydrogen, straight or branched alkyl having 1 to 4 carbon atoms, phenylalkyl wherein the alkyl has 1 to 4 carbon atoms, and alkenyl having 2 to 4 carbon atoms, R.sup.2 is selected from the group consisting of acyl of the formula COR.sup.3 wherein R.sup.3 represents lower alkyl having 1 to 4 carbon atoms, phenyl or 3,4,5-trimethoxy phenyl, and R' and R" may be the same or different and each represents hydrogen, lower alkyl having 1 to 4 carbon atoms, phenylalkyl wherein the alkyl has 1 to 4 carbon atoms or cycloalkyl of 4 to 6 carbon atoms, or R' and R", when taken together with the nitrogen atom to which they are attached, may from a heterocyclic group selected from the group consisting of piperidino, piperazino and morpholino, said heterocyclic group being unsubstituted or substituted by alkyl of 1 to 4 carbon atoms, and pharmaceutically acceptable acid addition salts thereof.

9. A 3,4-dihydrocarbostyril compound represented by the formula ##STR74## wherein R.sup.1 is hydrogen, R.sup.2 is selected from the group consisting of hydrogen and acyl of the formula COR.sup.3 wherein R.sup.3 represents lower alkyl having 1 to 4 carbon atoms, phenyl or 3,4,5-trimethoxy phenyl, and R' and R" may be the same or different and each represents hydrogen, lower alkyl having 1 to 4 carbon atoms, phenylalkyl wherein the alkyl has 1 to 4 carbon atoms or cycloalkyl of 4 to 6 carbon atoms, or R' and R", when taken together with the nitrogen atom to which they are attached, may form a heterocyclic group selected from the group consisting of piperidino, piperazino and morpholino, said heterocyclic group being unsubstituted or substituted by alkyl of 1 to 4 carbon atoms, and pharmaceutically acceptable acid addition salts thereof, with the proviso that when substitution is at the 5-position and R.sup.1 and R.sup.2 are hydrogen and one of R' and R" is hydrogen, the other of R' and R" is not a 1 to 4 carbon atom alkyl group.

10. A 3,4-dihydrocarbostyril compound represented by the formula ##STR75## wherein R.sup.1 is selected from the group consisting of hydrogen, straight or branched alkyl having 1 to 4 carbon atoms, phenylalkyl wherein the alkyl has 1 to 4 carbon atoms, and alkenyl having 2 to 4 carbon atoms, R.sup.2 is hydrogen, and R' and R" may be the same or different and each represents hydrogen, lower alkyl having 1 to 4 carbon atoms, phenylalkyl wherein the alkyl has 1 to 4 carbon atoms or cycloalkyl of 4 to 6 carbon atoms, or R' and R", when taken together with the nitrogen atom to which they are attached, may form a heterocyclic group selected from the group consisting of piperidino, piperazino and morpholino, said heterocyclic group being unsubstituted or substituted by alkyl of 1 to 4 carbon atoms, and pharmaceutically acceptable acid addition salts thereof, with the proviso that when substitution is at the 5-position and R.sup.1 and R.sup.2 are hydrogen and one of R' and R" is hydrogen, the other of R' and R" is not a 1 to 4 carbon atom alkyl group.

11. 1-Methyl-5-(2-hydroxy-3-tert.-butylamino )propoxy-3,4-dihydrocarbostyril.

12. 1-Methyl-5-(2-hydroxy-3-isopropylamino)propoxy-3,4-dihydrocarbostyril.

13. 1-Ethyl-5-(2-hydroxy-3-tert.-butylamino)propoxy-3,4-dihydrocarbostyril.

14. 1-Ethyl-5-(2-hydroxy-3-isopropylamino)propoxy-3,4-dihydrocarbostyril.

15. 5-(2-Hydroxy-3-cyclohexylamino)propoxy-3,4-dihydrocarbostyril.

16. 5-[2-(3,4,5-Trimethoxy)benzoyloxy-3-tert.-butylamino]-propoxy- 3,4-dihydrocarbostyril.

17. 5-[2-(3,4,5-Trimeth oxy)benzoyloxy-3-isopropylamino]-propoxy-3,4-dihydrocarbostyril.

18. 8-(2-Hydroxy-3-tert.-butylamino)propoxy-3,4-dihydrocarbostyril.

19. 8-(2-Hydroxy-3-isopropylamino)propoxy-3,4-dihydrocarbostyril.

20. 1-Allyl-5(2-hydroxy-3-tert.-butylamino)propoxy-3,4-dihydrocarbostyril.

21. 1-Allyl-5(2-hydroxy-3-isopropylamino)propoxy-3,4-dihydrocarbostyril.

22. 1-Benzyl-5(2-hydroxy-3-tert.-butylamino)propoxy-3,4-dihydrocarbostyril.
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