Vpn tunnel + ptp550 wan

Hi,

Is it possible to ping router 3 to router 1 using static routing?

The connection from router 3 to router 2 is established via a PTP550 WAN connection.

The connection from router 2 to router 1 is established via an L2TP+IPsec VPN tunnel.

I already created the routes and I still can't ping.