20007
The synthesis of diversely substituted 3 - alkyl / aralkyl / arylamino - 1 , 4 , 2 - benzodithiazine 1 , 1 - dioxides and 3 - alkylaminopyrido [ 4 , 3 - e ] - 1 , 4 , 2 - dithiazine 1 , 1 - dioxides is described .
 Chemical: 3 - alkyl / aralkyl / arylamino - 1 , 4 , 2 - benzodithiazine 1 , 1 - dioxides; Chemical: 3 - alkylaminopyrido [ 4 , 3 - e ] - 1 , 4 , 2 - dithiazine 1 , 1 - dioxides
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: 3 - alkyl / aralkyl / arylamino - 1 , 4 , 2 - benzodithiazine 1 , 1 - dioxides; Chemical: 3 - alkylaminopyrido [ 4 , 3 - e ] - 1 , 4 , 2 - dithiazine 1 , 1 - dioxides