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公开(公告)号:KR100062024B1
公开(公告)日:1993-05-17
申请号:KR1019900011089
申请日:1990-07-20
Applicant: 한국과학기술연구원
IPC: C07D501/36
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公开(公告)号:KR1019920008615B1
公开(公告)日:1992-10-02
申请号:KR1019900010721
申请日:1990-07-14
Applicant: 한국과학기술연구원
IPC: C07D277/16
Abstract: 5-Alkoxy-2-substd. thio-1,3-thiazoline derivs. of formula (I) are new. Also claimed is the prepn. of (I) which comprises a heat- transfer reaction of dithiocarbamate of formula (II) under the condition of 1-5 mmHg and 200 ± 10 deg.C or a cyclization-reaction of (II) under acidic condition. In the formulas, R=H, C1-6 alkyl, allyl, 2-propinyl, benzyl or 2- piridylmethyl; R1= methyl or ethyl. Pref. the acid is selected from trifluoroborane, anhydrous magnesium bromide or conc. H2SO4.
Abstract translation: 5-烷氧基-2- substd。 硫代-1,3-噻唑啉衍生物。 式(I)的化合物是新的。 还声称是prepn。 (I)的方法,其包括在1-5mmHg和200±10℃的条件下或式(II)在酸性条件下的环化反应的式(II)的二硫代氨基甲酸酯的热转移反应。 式中R = H,C 1-6烷基,烯丙基,2-丙炔基,苄基或2-吡啶基甲基; R1 =甲基或乙基。 县。 酸选自三氟硼烷,无水溴化镁或浓缩。 H2SO4。
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公开(公告)号:KR1019930001114B1
公开(公告)日:1993-02-18
申请号:KR1019900011089
申请日:1990-07-20
Applicant: 한국과학기술연구원
IPC: C07D501/36
Abstract: 7- Acylamino-3-(5- methoxythiazolin-2-yl) thiomethyl-3-cephem carboxylic acid derivs. of formula(I) are new. In (I), R=H, 2- (2aminothiazol-4-yl)-2(syn)- methoxyiminoacetyl, 2-(2- aminothiazol - 4-yl)-2-(2-t- butoxycarbonyl-2- propyloxyimino) acetyl, 2- (2aminothiazol-4-yl)-2-(2-carboxy-2-propyloxyimino)acetyl or D(-) alpha-(4- ethyl-2,3- dioxo-1- piperazine carboxyamido)-alpha- (4hydroxyphenyl)acetyl; R'=H or paramethoxybenzyl (PMB). Also claimed is the prepn. of (I) which comprises cyclizing dithiocarbamate of formula (II) in acidic condition and acylating the obtd. intermediate with an acetate deriv.
Abstract translation: 7-酰氨基-3-(5-甲氧基噻唑啉-2-基)硫甲基-3-头孢烯羧酸衍生物。 式(I)的化合物是新的。 在(I)中,R = H,2-(2-氨基噻唑-4-基)-2(顺式) - 甲氧基亚氨基乙酰基,2-(2-氨基噻唑-4-基)-2-(2-叔丁氧基羰基-2-丙氧基亚氨基 )乙酰基,2-(2-氨基噻唑-4-基)-2-(2-羧基-2-丙氧基亚氨基)乙酰基或D( - )α-(4-乙基-2,3-二氧代-1-哌嗪羧酰胺基)-α - (4-羟基苯基)乙酰基; R'= H或对甲氧基苄基(PMB)。 还声称是prepn。 (I)的方法,其包括在酸性条件下使式(II)的二硫代氨基甲酸酯环化并酰化所述有机物。 中间体与乙酸酯衍生物。
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公开(公告)号:KR1019920002612A
公开(公告)日:1992-02-28
申请号:KR1019900011089
申请日:1990-07-20
Applicant: 한국과학기술연구원
IPC: C07D501/36
Abstract: 내용 없음
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