に先立って => before; prior to ~ N2
に[先立「さきだ」]って/に[先立「さきだ」]ち/に[先立「さきだ」]つ => Before A occurs/takes place N2
Time, Situation
に先駆けて => prior to; to be the first (pioneer); being ahead of ~ N1
に[先駆「さきが」]けて => The earliest, very first in A; Ahead of A, in advance of A N1
Time, Situation
いい => (Refuse) enough N3
Refuse
ないといい => Not doing...it's better N4
Aspiration
いっさいない => Not at all N2
Emphasize negative meaning
いない => Inside, within... N3
Scope
いちがいに…ない => Impossible... in general N2
Description
といいなあ/たらいいなあ/ばいいなあ => it would be nice if; should; I hope ~ N3
~といい~といい      => both ... and; not only ... also; whether it be ... or ~ N1
… がいい ... => ... I hope that ... N3
Expected