477289-51-3

Upstream product

• 67-56-1 methanol 
• 749828-81-7 homo-p-(R)-tyrosine 
• 185617-14-5 (R)-homotyrosine hydrobromide 

Downstream Products

• 780820-97-5 (D)-(+)-N,O-bis(methanesulfonyl)-methyl homotyrosinate 
• 780820-91-9 (S)-1-[(2R,5R,6S)-2-(tert-Butyl-diphenyl-silanyloxymethyl)-1-aza-spiro[4.5]dec-6-yl]-1-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-nonan-3-one 
• 780820-96-4 (3R,5S,7S,7aS,11aR)-3-(tert-Butyl-diphenyl-silanyloxymethyl)-5-hexyl-7-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-decahydro-pyrrolo[2,1-j]quinoline 
• 780820-87-3 1-[(3R,5S,5aR,9aR)-3-(tert-Butyl-diphenyl-silanyloxymethyl)-4,4-dioxo-octahydro-4λ⁶-thia-3a-aza-cyclopenta[c]inden-5-yl]-octan-2-ol 
• 780820-89-5 1-[(3R,5S,5aR,9aR)-3-(tert-Butyl-diphenyl-silanyloxymethyl)-4,4-dioxo-octahydro-4λ⁶-thia-3a-aza-cyclopenta[c]inden-5-yl]-octan-2-one 
• 780820-99-7 (3R,5S,7aR,11aR)-3-(tert-Butyl-diphenyl-silanyloxymethyl)-5-hexyl-decahydro-pyrrolo[2,1-j]quinolin-7-ol 
• 780821-00-3 (3R,5S,7aR,11aR)-3-[[(tert-butyldiphenylsilyl)oxy]methyl]-5-hexyloctahydro-pyrrolo-1H-pyrrolo[2,1-j]quinolin-7(7aH)-one 
• 780820-93-1 (3R,5R,7aR,11aR)-3-(tert-Butyl-diphenyl-silanyloxymethyl)-5-hexyl-octahydro-pyrrolo[2,1-j]quinolin-7-one 
• 780820-85-1 3-(tert-butyl-diphenyl-silanyloxymethyl)-octahydro-4-thia-3a-aza-cyclopenta[c]indene 4,4-dioxide 
• 780820-79-3 2-(tert-butyl-diphenyl-silanyloxymethyl)-1-methanesulfonyl-1-aza-spiro[4.5]deca-6,9-dien-8-one 
• 780820-98-6 (D)-(+)-N,4'O-bis(methanesulfonyl)-homotyrosinol 
• 780820-76-0 (D)-(-)-N-methanesulfonyl-homotyrosinol 

Relevant academic research and scientific papers

Homotyrosine-containing cyanopeptolins 880 and 960 and anabaenopeptins 908 and 915 from Planktothrix agardhii CYA 126/8

Two homotyrosine-bearing cyanopeptolins are described from Planktothrix agardhii CYA 126/8. The compounds feature a common homotyrosine-containing cyclohexadepsipeptide and differ by sulfation of an exocyclically located 2-O-methyl-D-glyceric acid residue. In addition we describe two anabaenopeptins, which contain two homotyrosine residues, one of which is N-methylated. The anabaenopeptins have a common cyclopentapeptide portion and differ in the amino acid linked to it via an ureido bond, arginine and tyrosine, respectively.

Fully stereocontrolled total syntheses of (-)-cylindricine C and (-)-2-epicylindricine C: A departure in sulfonamide chemistry

A common intermediate was used in the total syntheses of (-)-cylindricine C and (-)-2-epicylindricine C (see picture) in a process that involves the initial oxidative spirocyclization of a phenolic sulfonamide. The remainder of the molecules is constructe