Picking earliest date in multiple dates in same colum( it is NVARCHAR files in staging table )

HI,

I have Dates column( NVARCHAR )datatype in sql table which contains multiple dates concatenated with space like following

 ID                 Dates 

1                1993-09-30   1994-09-22  1993-09-26  2003-09-20

I want pic Earliest date and migrate to one column through ssis package. is it possible from derived transofmation or any other process. is it possible from inside data folw task ? I have already mapped these other columns to my detination table. but I want to filter this from source table and migrate onely one date to destination column. is it possible ?

please help me on this scenario. 

Thanks,

Sriraj