Nitroguanidine derivative > Urea derivative

[#7:7]\[#6:1](-[#7:8])=[#7]\?[#7+](-[#8-])=O>>[#7:8]-[#6:1](-[#7:7])=O

[#7:7]\[#6:1](-[#7:8])=[#7]\?[#7+](-[#8-])=O

None

[#7:8]-[#6:1](-[#7:7])=O

None