Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_46 ( college VARCHAR, position VARCHAR, overall VARCHAR, round VARCHAR )

### Question ###
Name the college that has an overall larger than 187 and a round smaller than 7 for the defensive end position.

### Accurate SQL ###

SELECT college FROM table_name_46 WHERE overall > 187 AND round < 7 AND position = "defensive end"