EMCA insists that it cannot connect to the service
So it would seem the issue was not the service name specifically but that the request was going to the IPv6 address which was not set up in any of the required files. Looking at listener.log ( which for me was located D:\app\Administrator\diag\tnslsnr\dvp-oracle\listener\trace\listener.log) I found these entries associated to my connnection attempts. 

28-AUG-2017 08:41:58 * (CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=prodbkp)(CID=(PROGRAM=D:\app\Administrator\product\11.2.0\dbhome_1\bin\sqlplus.exe)(HOST=DVP-ORACLE)(USER=Administrator))) * (ADDRESS=(PROTOCOL=tcp)(HOST=fe80::7197:6503:9e81:5454%11)(PORT=49246)) * establish * prodbkp * 0


The important portion was HOST=fe80::7197:6503:9e81:5454%11. Since I would never need to support IPv6 I removed it from the network adapter and restarted the server to ensure all services were updated accordingly. 

While it might not be the ideal solution I was able to recreate the EM dbcontrol successfully after that change.