BR6681138D0 - IMPROVEMENTS IN CHEMICAL PROCESS - Google Patents
IMPROVEMENTS IN CHEMICAL PROCESSInfo
- Publication number
- BR6681138D0 BR6681138D0 BR18113866A BR18113866A BR6681138D0 BR 6681138 D0 BR6681138 D0 BR 6681138D0 BR 18113866 A BR18113866 A BR 18113866A BR 18113866 A BR18113866 A BR 18113866A BR 6681138 D0 BR6681138 D0 BR 6681138D0
- Authority
- BR
- Brazil
- Prior art keywords
- chemical process
- chemical
- Prior art date
Links
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US47060665A | 1965-07-08 | 1965-07-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
BR6681138D0 true BR6681138D0 (en) | 1973-12-26 |
Family
ID=23868272
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR18113866A BR6681138D0 (en) | 1965-07-08 | 1966-07-08 | IMPROVEMENTS IN CHEMICAL PROCESS |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE683875A (en) |
BR (1) | BR6681138D0 (en) |
DE (1) | DE1620729A1 (en) |
FI (1) | FI49715C (en) |
IT (1) | IT1062274B (en) |
NL (1) | NL6609626A (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1261455A (en) * | 1969-03-06 | 1972-01-26 | Burroughs Wellcome Co | Improvements in or relating to substituted acrylonitriles |
DE2065367C2 (en) * | 1969-03-06 | 1985-04-04 | The Wellcome Foundation Ltd., London | Process for the preparation of 2,4-diamino-5-benzylpyrimidines |
BR6915082D0 (en) | 1969-05-16 | 1973-03-08 | Wellcome Found | PROCESS OF PREPARATION OF BENZYL-PYRIMIDINES |
DE2051871A1 (en) * | 1969-05-16 | 1971-11-18 | The Wellcome Foundation Ltd., London | Beta-amino-alpha-aryloxymethylacrylonitrile - and 2,4-diamino-5-benzylpyrimidine derivs. useful as antibacterial agents |
BE792096A (en) * | 1971-12-01 | 1973-05-30 | Hoffmann La Roche | NEW BENZYLPYRIMIDINES |
BE795023A (en) * | 1972-02-07 | 1973-08-06 | Hoffmann La Roche | NEW BENZYLPYRIMIDINES |
EP0046856A3 (en) * | 1980-08-29 | 1982-07-28 | Hüls Troisdorf Aktiengesellschaft | Process for preparing 4-amino-2-mercapto-pyrimidines |
DE4333688C2 (en) * | 1993-10-02 | 2003-11-06 | Guenter Ege | Process for the preparation of 3-aryl-2- (dialkoxymethyl) propannitriles and their conversion to 5-arylmethyl-2,4-diamino-pyrimidines, in particular to trimethoprim |
CN107162989A (en) * | 2017-05-27 | 2017-09-15 | 山东新华制药股份有限公司 | A kind of preparation method of trimethoprim impurity |
-
1966
- 1966-07-06 DE DE19661620729 patent/DE1620729A1/en active Pending
- 1966-07-07 FI FI182766A patent/FI49715C/en active
- 1966-07-07 IT IT1543766A patent/IT1062274B/en active
- 1966-07-08 BR BR18113866A patent/BR6681138D0/en unknown
- 1966-07-08 NL NL6609626A patent/NL6609626A/xx unknown
- 1966-07-08 BE BE683875D patent/BE683875A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
DE1620729A1 (en) | 1970-08-20 |
FI49715B (en) | 1975-06-02 |
IT1062274B (en) | 1984-02-29 |
NL6609626A (en) | 1967-01-09 |
FI49715C (en) | 1975-09-10 |
BE683875A (en) | 1967-01-09 |
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