ES474955A1 - A procedure for the preparation of a polyclical compound. (Machine-translation by Google Translate, not legally binding) - Google Patents
A procedure for the preparation of a polyclical compound. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES474955A1 ES474955A1 ES474955A ES474955A ES474955A1 ES 474955 A1 ES474955 A1 ES 474955A1 ES 474955 A ES474955 A ES 474955A ES 474955 A ES474955 A ES 474955A ES 474955 A1 ES474955 A1 ES 474955A1
- Authority
- ES
- Spain
- Prior art keywords
- formula
- compound
- translation
- preparation
- machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
A process for the preparation of a polycyclic compound of formula (I) * formula ** and the corresponding pharmaceutically acceptable salts, where R1, R2, R3 and R4, which may be the same or different, represent hydrogen, halogen, nitro, alkyl lower or lower alkoxy, or any of two adjacent groups of R1 to R4, taken together, represent an alkylene group, consisting of 3 to 5 carbon atoms or a 1,4-buta-1,3-dienylene group, assuming that R1 to R4 do not all represent hydrogen, the process of which involves the reaction of a compound of formula (IV) ** formula ** where R1, R2, R3 and R4 are as defined in formula (I) and R represents hydrogen or an acyl group, with nitrous acid and optionally subsequent conversion of the compound of formula (I) into a pharmaceutically acceptable salt. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4676577 | 1977-11-10 | ||
| GB4676677 | 1977-11-10 | ||
| GB7830766 | 1978-07-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES474955A1 true ES474955A1 (en) | 1979-12-01 |
Family
ID=27259966
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES474955A Expired ES474955A1 (en) | 1977-11-10 | 1978-11-08 | A procedure for the preparation of a polyclical compound. (Machine-translation by Google Translate, not legally binding) |
| ES480580A Expired ES480580A1 (en) | 1977-11-10 | 1979-05-14 | A procedure for the preparation of compounds 4,9-dihydro-4,9-dioxo-ih nafto (2,3-d) triazoles. (Machine-translation by Google Translate, not legally binding) |
| ES480581A Expired ES480581A1 (en) | 1977-11-10 | 1979-05-14 | A procedure for the preparation of compounds 4,9-dihydro-4,9-dioxo-1H-nafto (2,3-d) triazoles. (Machine-translation by Google Translate, not legally binding) |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES480580A Expired ES480580A1 (en) | 1977-11-10 | 1979-05-14 | A procedure for the preparation of compounds 4,9-dihydro-4,9-dioxo-ih nafto (2,3-d) triazoles. (Machine-translation by Google Translate, not legally binding) |
| ES480581A Expired ES480581A1 (en) | 1977-11-10 | 1979-05-14 | A procedure for the preparation of compounds 4,9-dihydro-4,9-dioxo-1H-nafto (2,3-d) triazoles. (Machine-translation by Google Translate, not legally binding) |
Country Status (1)
| Country | Link |
|---|---|
| ES (3) | ES474955A1 (en) |
-
1978
- 1978-11-08 ES ES474955A patent/ES474955A1/en not_active Expired
-
1979
- 1979-05-14 ES ES480580A patent/ES480580A1/en not_active Expired
- 1979-05-14 ES ES480581A patent/ES480581A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ES480581A1 (en) | 1980-08-16 |
| ES480580A1 (en) | 1980-08-16 |
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