Abstract
An efficient and cost-effective procedure has been devised for the preparation of urethane-protected 5-aminolaevulinic acid (5-ALA) dipeptide ester derivatives which avoids problems associated with the instability of 5-ALA under basic conditions. The procedure is also applicable to the direct synthesis of N-(alpha)-acetyl amino acid-ALA dipeptides in high enantiomeric purity as potential novel prodrugs for photodynamic therapy (PDT). (c) 2005 Elsevier Ltd. All rights reserved.
Original language | English |
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Pages (from-to) | 6951-6958 |
Number of pages | 8 |
Journal | Tetrahedron |
Volume | 61 |
DOIs | |
Publication status | Published - 18 Jul 2005 |
Keywords
- aminolaevulinic acid
- peptide
- prodrug
- photodynamic therapy
- PROTOPORPHYRIN-IX
- DRUG-DELIVERY
- AMINO-ACID
- DERIVATIVES
- PHOTOSENSITIZERS
- PRECURSORS
- ESTERS