538367-18-9

Upstream product

• 538367-17-8 (3S,11aS)-3-(3,4-Dimethoxy-benzyl)-8,9-dimethoxy-1,4-dioxo-1,3,4,6,11,11a-hexahydro-pyrazino[1,2-b]isoquinoline-2-carboxylic acid isopropyl ester 
• 59-92-7 levodopa 
• 138908-56-2 (S)-(+)-2-tert-butoxycarbonylamino-3-(3,4-dimethoxyphenyl)propionic acid methyl ester 
• 34312-81-7 (3S)-6,7-Dihydroxy-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid 
• 175673-28-6 methyl (S)‐6,7‐dimethoxy‐1,2,3,4‐tetrahydroisoquinoline‐3‐carboxylate 
• 127095-97-0 (2S)-2-[(tert-butoxycarbonyl)amino]-3-(3,4-dimethoxyphenyl)propanoic acid 
• 611239-26-0 (S)-methyl 6,7-dihydroxy-1,2,3,4-tetrahydroisoquinoline-3-carboxylate 
• 611239-27-1 (S)-2-Formyl-6,7-dihydroxy-1,2,3,4-tetrahydro-isoquinoline-3-carboxylic acid methyl ester 
• 611239-28-2 (S)-2-Formyl-6,7-dimethoxy-1,2,3,4-tetrahydro-isoquinoline-3-carboxylic acid methyl ester 
• 538367-16-7 3-(3,4-dimethoxy-benzyl)-8,9-dimethoxy-2,3,11,11a-tetrahydro-6H-pyrazino[1,2-b]isoquinoline-1,4-dione 
• 538367-15-6 (S)-2-[(S)-2-tert-Butoxycarbonylamino-3-(3,4-dimethoxy-phenyl)-propionyl]-6,7-dimethoxy-1,2,3,4-tetrahydro-isoquinoline-3-carboxylic acid methyl ester 

Relevant academic research and scientific papers

A new efficient synthetic process for the construction of the pentacyclic core of marine alkaloid ecteinascidins

The pentacyclic core of ecteinascidins was constructed from two fundamental building blocks, the 1,2,3,4-tetrahydroisoquinoline derivative and the substituted phenylalanine derivative, via 8 steps using readily available L-Dopa as starting material. The k