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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• SuZhou Hua-Emy Chemical Import and Export Co., LTD.

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• PharmOrgsyn

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• Hubei Vanz Pharm Co.,Ltd

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• SHAANXI TOP PHARM CHEMICAL CO.LTD

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