English to Ukrainian Other Chemistry; Chem Sci/Eng

where the substituents are selected from the group consisting of one to three R1, R2 and R3;
R1, R2 and R3 are selected from the group consisting of
hydrogen,
C1-C8alkyl-hydroxy,
halo,
halo-C1-C8alkyl,
cyano,
isocyanate,
carboxy,
carboxy-C1-C6alkyl,
amino,
amino-C1-C8alkyl,
amino-di(C1-C8alkyl),
aminocarbonyl,
carboxamido,
carbamoyl,
carbamoyloxy,
formyl,
formyloxy,
nitro,
imidazoyl,
ureido,
thioureido,
thiocyanato,
hydroxy,
C1-C6alkoxy,
mercapto,
sulfonamido,
phenoxy,
phenyl, and
benzamido;
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и если можно объясните вкратце в чем между ними разница :)