Synthesis of 1,2,4-triazole, 1,2,4-triazolo[3,4-b][1,3,4]thiadiazole and 1,2,4-triazolo[3,4-b][1,3,4]thiadiazine derivatives and benzotriazole

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• Shanghai AoBo Bio-Pharmaceutical Technology Co., Ltd.

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• Quzhou Ruiyuan chemical Co., Ltd

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• SHANGHAI T&W PHARMACEUTICAL CO., LTD.

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• Hebei Tianxiang Biological & Pharmaceutical Co., Ltd

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• Alway Chem, China

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