Merge 2 tables in SQL and save into 1 new table

Question

I have two tables with the same columns.

Table 1

Structure, Name, Active
1,A,1

Table 2

Structure, Name, Active
2,B,0

I want to combine these two tables and save them into a new one

New Table

Structure, Name, Active
1,A,1
2,B,0

Here is the code I came up with:

CREATE TABLE Amide_actives_decoys
(
    Structure NVARCHAR(255),
    Name NVARCHAR(255),
    Active INT
)
GO

INSERT Amide_actives_decoys
FROM (
   SELECT * FROM Amide_decoys 
   UNION
   SELECT * FROM Amide_actives 
)

But the following error message shows up:

Msg 156, Level 15, State 1, Line 10
Incorrect syntax near the keyword 'FROM'.

Can someone please help me with this?