what is the opposite of " in order to"?

[ssendur]

for example, i want to tide up my room and it is 9 pm so i say to my friend that i have to make the cleaning within 1 hour so that i dont bother the neighbours. what if i want to use " in order to" to connect those two sentence. " i have to finish cleaning within an hour in order not to disturb neighbours" or
" i have to finish cleaning within an hour in order to not disturb neighbours".
i have this kind of problem when constructing negative sentences, do you have some clues on this issue?
thank you very much.

[Tdol]

I'd use 'in order not to' or 'so as not to'.

[ssendur]

thank you so much tdol