19893
Synthesis and biochemical activities of antiproliferative amino acid and phosphate derivatives of microtubule - disrupting beta - lactam combretastatins .
 Chemical: amino acid; Chemical: phosphate; Chemical: beta - lactam combretastatins
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: amino acid; Chemical: phosphate; Chemical: beta - lactam combretastatins