HUT56060A - Chemical process - Google Patents
Chemical processInfo
- Publication number
- HUT56060A HUT56060A HU25090A HU25090A HUT56060A HU T56060 A HUT56060 A HU T56060A HU 25090 A HU25090 A HU 25090A HU 25090 A HU25090 A HU 25090A HU T56060 A HUT56060 A HU T56060A
- Authority
- HU
- Hungary
- Prior art keywords
- pgf2alpha
- water
- prepd
- mixt
- opt
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PGF2alpha-tris- (hydroxy-methyl)-amino-methane is prepd. (a) tris-(hydroxy-methyl) -amino-methane and water is added to liq. or solid PGF2alpha at 25-35 deg.C. The mixt. is agitated until it is homogeneous. Water miscible solvent is added in which the prod. is not or only barely soluble. The mixt. is cooled to -10 - +10 deg.C and opt. seeded. Addn. of solvent is stopped when crystallisation of PGF2alpha is complete. (b) Water is removed under vacuum or opt. by azeotropic distn. from the homogeneous aq. phase prepd. in (a). The residue is dissolved in methanol and the soln. is also treated as in (
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU25090A HU209599B (en) | 1990-01-24 | 1990-01-24 | Process for preparing pgp2 alpha tris-(hydroxymethyl)-aminomethan-salt with precipitating crystallisation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU25090A HU209599B (en) | 1990-01-24 | 1990-01-24 | Process for preparing pgp2 alpha tris-(hydroxymethyl)-aminomethan-salt with precipitating crystallisation |
Publications (3)
Publication Number | Publication Date |
---|---|
HU900250D0 HU900250D0 (en) | 1990-03-28 |
HUT56060A true HUT56060A (en) | 1991-07-29 |
HU209599B HU209599B (en) | 1994-08-29 |
Family
ID=10948727
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HU25090A HU209599B (en) | 1990-01-24 | 1990-01-24 | Process for preparing pgp2 alpha tris-(hydroxymethyl)-aminomethan-salt with precipitating crystallisation |
Country Status (1)
Country | Link |
---|---|
HU (1) | HU209599B (en) |
-
1990
- 1990-01-24 HU HU25090A patent/HU209599B/en unknown
Also Published As
Publication number | Publication date |
---|---|
HU209599B (en) | 1994-08-29 |
HU900250D0 (en) | 1990-03-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
HC9A | Change of name, address |
Owner name: CHINOIN GYOGYSZER- ES VEGYESZETI TERMEKEK GYAR, HU Free format text: FORMER OWNER(S): CHINOIN GYOGYSZER ES VEGYESZETI TERMEKEK GYARA RT., HU |