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The suffix '-ol' with its multiplicative prefix 'di-' and locants '1' and '11' indicates the presence of two hydroxy (
) groups at positions 1 and 11 of undecane. The infixes '-ene' and '-yne', with
their multiplicative prefix 'di-' and locants '2' and '4', and '7' and '9', describe double bonds at positions 2 and 4 and triple bonds at positions 7 and 9, respectively.
The resulting parent structure with its numbering is:
(b) The complex prefix '(4-hydroxyhex-1-en-1-yl-)' with its locant '6' describes a substituent at position 6 of the parent structure. The parent substituent is a six-carbon chain corresponding to the parent
hydride name 'hexane'. The prefix 'hydroxy-' with its locant '4' denotes a hydroxy 
group at position 4; and the infix '-en-' with its locant '1' and the suffix '-yl-' with its locant '1'
describe, respectively, a double bond at position 1 and a free valence at position 1. Hence, the structure and numbering of the complex substituent is:
(c) The structure of the complete compound is therefore:
-methylquinoline-2-pentanoic acid
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