Dimethylformamide → (+/-)-8-Methyl-7-(5-methyl-thiazol-2-yl)-5-(4-nitrophenyl)-8,9-dihydro-7H-1,3-dioxolo[4,5-h][2,3]benzodiazepine

참여 물질

역할	이름	HCID	투입량
반응물	Dimethylformamide	HCID 6228	—
반응물	(+/-)-8-Methyl-5-(4-nitrophenyl)-7-thiocarbamoyl-8,9-dihydro-7H-1,3-dioxolo[4,5-h][2,3]benzodiazepine	HCID 12137394	—
반응물	2-Bromo-1,1-dimethoxypropane	HCID 12293010	—
용매	Water	HCID 962	—
생성물	(+/-)-8-Methyl-7-(5-methyl-thiazol-2-yl)-5-(4-nitrophenyl)-8,9-dihydro-7H-1,3-dioxolo[4,5-h][2,3]benzodiazepine	HCID 12137424	66%

반응 조건

온도	90 °C

반응 단계

A mixture of 1.50 g (3.90 mmol) of starting material I, 3.57 g (19.50 mmol) of 2-bromopropionaldehyde dimethyl acetal and 15 ml of dimethylformamide was stirred at 90° C. for 1.5 h. Then the reaction mixture was diluted with water and the crude product obtained was purified by column chromatography using silica gel (MN Kieselgel 60; Macherey-Nagel, Düren, Germany) as adsorbent and a mixture of toluene-ethyl acetate (16:1) as eluent to yield 1.08 g (66%) of the title compound; Mp.: 193-195° C.

출처 및 근거

DOI	10.6084/m9.figshare.5104873.v1
특허 번호	US06858605B2
출처 데이터셋	uspto-grants-2005_02
ORD ID	ord-058eb0d520574b10a934d9faf9876303
출처 메모	uspto-grants-2005_02