You will be limited to four identical coupons, so split this scenario into two transactions or trips with four items in one transaction and two items in the other transaction.
At CVS through 9/16:
BUY SIX ALEVE 24 CT, on sale BOGO 50% OFF $5.49 ($24.69 for six with sale)
Get $8 Extra Bucks for buying $20 of Aleve or Bayer
Use six $2/1 Aleve Product printable coupon (preclipped)
Price at Register: $12.69, but get $8 Extra Bucks
NET PRICE FOR ALL: $4.69 (or 78 cents each!)