Synthesis of Human Ultraviolet Filter Compounds: O-β-d-Glucopyranosides of 3-Hydroxykynurenine and 2-Amino-3-hydroxy-γ-oxobenzenebutanoic Acid
摘要:
The role of endogenous tryptophan-derived UV filters in aging lenses and in human cataract is becoming increasingly important. The two major UV filters found in the lenses of primates, the O-beta-D-glucopyranosides of 3-hydroxykynurenine and 2-amino-3-hydroxy-gamma-oxobenzenebutanoic acid, 1 and 2, were synthesized from the common benzoyl acrylate precursor 2-amino-3-hydroxybenzoylacrylic acid 10. Synthesis of compound 3, the alpha-N-acetyl derivative of 1, was achieved using coupling of 2-nitro-3-benzyloxyacetophenone 4 with the sodium salt of diethyl acetamidomalonate as a key step. This is the first reported synthesis of the lenticular glucopyranoside 2 and the N-acetyl compound 3.
Synthesis of Human Ultraviolet Filter Compounds: O-β-d-Glucopyranosides of 3-Hydroxykynurenine and 2-Amino-3-hydroxy-γ-oxobenzenebutanoic Acid
摘要:
The role of endogenous tryptophan-derived UV filters in aging lenses and in human cataract is becoming increasingly important. The two major UV filters found in the lenses of primates, the O-beta-D-glucopyranosides of 3-hydroxykynurenine and 2-amino-3-hydroxy-gamma-oxobenzenebutanoic acid, 1 and 2, were synthesized from the common benzoyl acrylate precursor 2-amino-3-hydroxybenzoylacrylic acid 10. Synthesis of compound 3, the alpha-N-acetyl derivative of 1, was achieved using coupling of 2-nitro-3-benzyloxyacetophenone 4 with the sodium salt of diethyl acetamidomalonate as a key step. This is the first reported synthesis of the lenticular glucopyranoside 2 and the N-acetyl compound 3.
Synthesis of Human Ultraviolet Filter Compounds: <i>O</i>-β-<scp>d</scp>-Glucopyranosides of 3-Hydroxykynurenine and 2-Amino-3-hydroxy-γ-oxobenzenebutanoic Acid
作者:Michael K. Manthey、Joanne F. Jamie、Roger J. W. Truscott
DOI:10.1021/jo982321n
日期:1999.5.1
The role of endogenous tryptophan-derived UV filters in aging lenses and in human cataract is becoming increasingly important. The two major UV filters found in the lenses of primates, the O-beta-D-glucopyranosides of 3-hydroxykynurenine and 2-amino-3-hydroxy-gamma-oxobenzenebutanoic acid, 1 and 2, were synthesized from the common benzoyl acrylate precursor 2-amino-3-hydroxybenzoylacrylic acid 10. Synthesis of compound 3, the alpha-N-acetyl derivative of 1, was achieved using coupling of 2-nitro-3-benzyloxyacetophenone 4 with the sodium salt of diethyl acetamidomalonate as a key step. This is the first reported synthesis of the lenticular glucopyranoside 2 and the N-acetyl compound 3.