8909
Design and synthesis of novel 2 - methyl - 4 , 5 - substitutedbenzo [ f ] - 3 , 3a , 4 , 5 - tetrahydro - pyrazolo [ 1 , 5 - d ] [ 1 , 4 ] oxazepin - 8 ( 7H ) - one derivatives as telomerase inhibitors .
 Chemical: 2 - methyl - 4 , 5 - substitutedbenzo [ f ] - 3 , 3a , 4 , 5 - tetrahydro - pyrazolo [ 1 , 5 - d ] [ 1 , 4 ] oxazepin - 8 ( 7H ) - one
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
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Answer:
 Chemical: 2 - methyl - 4 , 5 - substitutedbenzo [ f ] - 3 , 3a , 4 , 5 - tetrahydro - pyrazolo [ 1 , 5 - d ] [ 1 , 4 ] oxazepin - 8 ( 7H ) - one