How can I type the "@" symbol via remote desktop with a Swedish keyboard?
Does  ⌘ + alt + 2 work? This is a combination for @ in bootcamp.

For the other keys: 


⌘ + alt + 7  to get {
⌘ + alt + 0  to get }
⌘ + alt + 8  to get [
⌘ + alt + 9  to get ]