Imidazo[2,1-b]-1,3,4-thiadiazolo[3,2-α]pyrimidin-6-ones by cyclisation of 2-(acetoacetylamino)-imidazo[2,1-b]-1,3,4-thiadiazoles

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• Hangzhou Zyter Biological & Chemical Technology Co., Ltd.

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• Angelisun(Chongqing) Pharmaceutical Co., LTD.

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• Xian Lyphar Biotech Co., Ltd.

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• Shaanxi Lighte Optoelectronics Material Co., Ltd.

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• Rizhao Lanxing Chemical Indusrial Co.,Ltd

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