109801-68-5

Upstream product

• 109801-82-3 N-<(S)-4-hydroxy-5-methyl-3-oxohexanoyl>-L-leucine p-chlorophenacyl ester 
• 536-38-9 4-chlorobenzoylmethyl bromide 
• 109801-94-7 Leu-OCpa*HCl 
• 109801-76-5 N-<(S)-4-<(isobutoxycarbonyl)oxy>-5-methyl-3-oxohexanoyl>-L-leucine p-chlorophenacyl ester 
• 109801-75-4 N-<(S)-4-<(isobutoxycarbonyl)oxy>-5-methyl-3-oxohexanoyl>-L-leucine methyl ester 
• 109801-77-6 N-<(S)-4-(2,2,2-trimethylacetoxy)-5-methyl-3-oxohexanoyl>-L-leucine methyl ester 
• 109801-88-9 C₁₅H₂₆O₇ 
• 109801-89-0 2,2-Dimethyl-propionic acid (S)-1-(2,2-dimethyl-propionyloxycarbonyl)-2-methyl-propyl ester 
• 109801-91-4 (S)-4-<(isobutoxycarbonyl)oxy>-5-methyl-3-oxohexanoic acid ethyl thio ester 
• 109801-92-5 2,2-Dimethyl-propionic acid (S)-3-ethylsulfanylcarbonyl-1-isopropyl-2-oxo-propyl ester 

Relevant academic research and scientific papers

Copper(I)-Promoted Condensation of α-Amino Acids with β-Keto Thio Esters: Synthesis of N-Acylated L-Leucine Derivatives Containing (S)-4-Hydroxy-5-methyl- and (S)-4-Hydroxy-2,5-dimethyl-3-oxohexanoic Acid

Acylation of lithium enolates of ethyl acetate and ethyl thioacetate with derivatives of (S)-2-hydroxy-3-methylbutanoic acid, activated at the carboxyl function as the acid chloride, unsymmetrical carbonic anhydride, or active ester, furnished the corresp