ES8609339A1 - Prepn. of penicillanic acid deriv. and salts - Google Patents
Prepn. of penicillanic acid deriv. and saltsInfo
- Publication number
- ES8609339A1 ES8609339A1 ES548296A ES548296A ES8609339A1 ES 8609339 A1 ES8609339 A1 ES 8609339A1 ES 548296 A ES548296 A ES 548296A ES 548296 A ES548296 A ES 548296A ES 8609339 A1 ES8609339 A1 ES 8609339A1
- Authority
- ES
- Spain
- Prior art keywords
- prepn
- salts
- penicillanic acid
- acid deriv
- acid
- 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
Method comprises hydrogenating 6,6-dibromopenicillanic acid (II) with a mixt. of Cd powder and mineral acid such as H2SO4 or HCl in solvent system comprising water and one of tetrahydrofuran, dioxan, or ethyl acetate, between 0 and 15 deg.C; filtering to remove excess Cd; distilling the filtered 6% to remove the solvent and obtain penicillanic acid 1,1-dioxide (I); neutralising with NaOH or KOH and (e) treating with Na or K 2-ethyl hexanoate in ethyl acetate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES548296A ES8609339A1 (en) | 1985-10-29 | 1985-10-29 | Prepn. of penicillanic acid deriv. and salts |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES548296A ES8609339A1 (en) | 1985-10-29 | 1985-10-29 | Prepn. of penicillanic acid deriv. and salts |
Publications (2)
Publication Number | Publication Date |
---|---|
ES8609339A1 true ES8609339A1 (en) | 1986-04-01 |
ES548296A0 ES548296A0 (en) | 1986-04-01 |
Family
ID=8490046
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES548296A Expired ES8609339A1 (en) | 1985-10-29 | 1985-10-29 | Prepn. of penicillanic acid deriv. and salts |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES8609339A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1041075A1 (en) * | 1999-03-03 | 2000-10-04 | Alex-Gyogyszer Kutatási | Procedure for the preparation of dioxopenicillanic acid derivatives |
-
1985
- 1985-10-29 ES ES548296A patent/ES8609339A1/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1041075A1 (en) * | 1999-03-03 | 2000-10-04 | Alex-Gyogyszer Kutatási | Procedure for the preparation of dioxopenicillanic acid derivatives |
Also Published As
Publication number | Publication date |
---|---|
ES548296A0 (en) | 1986-04-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC1A | Transfer granted | ||
FD1A | Patent lapsed |
Effective date: 20051219 |