KR101110331B1 - 이소티아졸 유도체 및 그 제조방법 - Google Patents
이소티아졸 유도체 및 그 제조방법 Download PDFInfo
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- KR101110331B1 KR101110331B1 KR20100029973A KR20100029973A KR101110331B1 KR 101110331 B1 KR101110331 B1 KR 101110331B1 KR 20100029973 A KR20100029973 A KR 20100029973A KR 20100029973 A KR20100029973 A KR 20100029973A KR 101110331 B1 KR101110331 B1 KR 101110331B1
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Abstract
상기 화합물을 이용하면 세포테탄의 제조에 필수적인 4-카르복시-3-히드록시-5-머캅토-4-이소티아졸 트리-염의 화합물을 종래의 방법에 비해 현저히 낮은 온도에서 짧은 시간동안 제조할 수 있어 효율적이며, 부산물로서 인체에 해로운 기체가 발생되지 않는 장점이 있다.
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Claims (6)
- 제 2 항에 있어서, 에탄올,이소프로판올,1-부탄올,아세톤,메틸에틸케톤으로 이루어진 그룹에서 선택된 유기용매를 가하여 화학식 2a의 화합물을 침전시켜 여과한 뒤 상기 유기용매로 세척하고 감압건조시킴으로써 정제하는 단계를 더 포함하는 것을 특징으로 하는 제조방법.
- 제 4 항에 있어서, 상기 화학식 2a의 화합물의 용액은 수용액이며, 산을 가하여 pH 4-6으로 조정하는 단계를 수행한 다음, 디클로로메탄, 에틸아세테이트, 톨루엔, 에테르, 및 이들의 혼합물으로 이루어진 그룹에서 선택된 유기용매를 가하고 혼합한 다음 유기층을 분리하여 감압농축함으로써 화학식 2의 화합물을 정제하는 단계를 더 포함하는 것을 특징으로 하는 화학식 2b의 화합물의 제조방법.
- 하기 화학식 2의 화합물의 용액 중에 수산화리튬, 수산화나트륨, 수산화칼륨, 및 이들의 혼합물로 이루어진 그룹에서 선택된 염기 4 내지 8 당량을 가하고 60℃ 내지 80℃에서 30분 내지 1시간동안 반응시키는 단계를 포함하는 하기 화학식 3의 화합물의 제조방법:
[화학식 2]
상기 화학식 2에서,
R1은 C1-C8 알킬; 벤질; 또는 C1 -6 알킬, C1 -6 알콕시, 또는 할로겐으로 치환된 벤질이고,
R2 및 R3는 각각 독립적으로 수소, Li, Na, 또는 K이다;
[화학식 3]
상기 화학식 3에서,
R2', R3', 및 R4는 각각 독립적으로 Li, Na, 또는 K이다.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20100029973A KR101110331B1 (ko) | 2010-04-01 | 2010-04-01 | 이소티아졸 유도체 및 그 제조방법 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20100029973A KR101110331B1 (ko) | 2010-04-01 | 2010-04-01 | 이소티아졸 유도체 및 그 제조방법 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20110110576A KR20110110576A (ko) | 2011-10-07 |
| KR101110331B1 true KR101110331B1 (ko) | 2012-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR20100029973A Active KR101110331B1 (ko) | 2010-04-01 | 2010-04-01 | 이소티아졸 유도체 및 그 제조방법 |
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| KR (1) | KR101110331B1 (ko) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1258482A1 (en) * | 2001-05-10 | 2002-11-20 | ACS DOBFAR S.p.A. | Process for obtaining compounds usable in the production of cefotetan, and new compounds obtained thereby |
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- 2010-04-01 KR KR20100029973A patent/KR101110331B1/ko active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1258482A1 (en) * | 2001-05-10 | 2002-11-20 | ACS DOBFAR S.p.A. | Process for obtaining compounds usable in the production of cefotetan, and new compounds obtained thereby |
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| KR20110110576A (ko) | 2011-10-07 |
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