の[末「すえ」]/た[末「すえ」] => conclusion N2
Reason, Result, Response
途端に... => as soon as; just as ~ N2
Time
~からなる(成る)      => Consists of; formed to N2
~ぶんには(~分には) => as long as ~ N1
末 => finally; after; following; at the end/ conclusion of ~ N2