I'm using a software called MarvinSketch 5.9.4 to check my nomenclature answers...It seems accurate..But I found something that I cant understand.Here is the structure I inserted and got 2-ethenyl-formylpentanamide
but I think it must be 2-formyl-2-propylbut-3-enamide
1.parent hydrocarbon chain must have maximum number of double bonds..
2.then :rarrow:the maximum number of C atoms
EDIT:now seems to be not much accurate getting this,
my suggestion : 4-bromo-3-propylpent-4-en-1-ol