ethyl 4-hydroxy-4-methylpent-2-ynoate

N-ethyl-ethylenediamine; dihydrochloride

4-hydroxy-4-methylpentanoic acid

cyclohexyl 4-oxopentanoate

(Z)-5-(1-Methoxymethyl-1H-imidazol-2-yl)-2-methyl-5-triisopropylsilanyloxy-pent-4-en-2-ol