This is how I set up a static route.
R1(conf): ipv6 route 2004:DB8:2233:23::/64 2001:DB8:1122:12::2
With this, I can ping to 2004:DB8:2233:23::2 (S2/2 on R2) but not to 2004:DB8:2233:23::3 (S2/2 on R3)
Here is sh ipv6 int brief from:
**R1**
GigabitEthernet1/0 [up/up]
FE80::C801:15FF:FEB9:1C
2001:DB8:1234:1:C801:15FF:FEB9:1C
Serial2/1 [up/up]
FE80::C801:15FF:FEB9:0
2001:DB8:1122:12::1
**R2:**
Serial2/1 [up/up]
FE80::C802:15FF:FEC8:0
2001:DB8:1122:12::2
Serial2/2 [up/up]
FE80::C802:15FF:FEC8:0
2004:DB8:2233:23::2
sh ipv6 route from:
R1:
C 2001:DB8:1122:12::/64 [0/0]
via Serial2/1, directly connected
L 2001:DB8:1122:12::1/128 [0/0]
via Serial2/1, receive
C 2001:DB8:1234:1::/64 [0/0]
via GigabitEthernet1/0, directly connected
L 2001:DB8:1234:1:C801:15FF:FEB9:1C/128 [0/0]
via GigabitEthernet1/0, receive
S 2001:DB8:1234:4::/64 [1/0]
via 2001:DB8:1122:12::2
S 2001:DB8:3344:34::/64 [1/0]
via 2001:DB8:1122:12::2
S 2004:DB8:2233:23::/64 [1/0]
via Serial2/1, directly connected
via 2001:DB8:1122:12::2
L FF00::/8 [0/0]
R2:
C 2001:DB8:1122:12::/64 [0/0]
via Serial2/1, directly connected
L 2001:DB8:1122:12::2/128 [0/0]
via Serial2/1, receive
S 2001:DB8:1234:4::/64 [1/0]
via 2004:DB8:2233:23::3
S 2001:DB8:3344:34::/64 [1/0]
via 2004:DB8:2233:23::3
C 2004:DB8:2233:23::/64 [0/0]
via Serial2/2, directly connected
L 2004:DB8:2233:23::2/128 [0/0]
via Serial2/2, receive
L FF00::/8 [0/0]
via Null0, receive