Oh, I see. There is nothing else around. To the right is the wall, to the left the window 70cm wide, and then, after the window, comes the shower. The washbasin hangs freely in the corner directly opposite the door.
If a pictorial idea of the overall situation of the bathroom helps the discussants: post #14 (or rather 29 to 31).
I don't know how flexible such connections are when it comes to a few centimeters deviation from the center.
In the bend of the drain, it should be possible to shift it slightly so that the basin drain does not have to be exactly in line with the downpipe. For the supply lines, of course, you have to do the same.