避免强氧化剂、强碱、强酸以及强还原剂。
| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 | 
|---|---|---|---|---|
| —— | (+/-)-5t-methyl-2-phenyl-4,5-dihydro-oxazole-4r-carboxylic acid | 99843-24-0 | C11H11NO3 | 205.213 | 
| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 | 
|---|---|---|---|---|
| —— | (4R,5R)-4,5-dimethyl-2-phenyl-4,5-dihydrooxazole-4-carboxylic acid methyl ester | 88318-70-1 | C13H15NO3 | 233.267 | 
| —— | (4R,5S)-2-phenyl-4-(hydroxymethyl)-5-methyl-4,5-dihydrooxazole | 129783-77-3 | C11H13NO2 | 191.23 | 
| —— | methyl (4S,5R)-4-(2-hydroxypropan-2-yl)-5-methyl-2-phenyl-5H-1,3-oxazole-4-carboxylate | 88318-77-8 | C15H19NO4 | 277.32 | 
We report the full structural determination of the depsipeptide petriellin A. The absolute configuration of the amino acid residues, N-methyl isoleucine and N-methyl threonine, have been determined by a combination of HPLC and TLC comparison of synthetic Marfey’s derivatives and Marfey’s derivatives of the natural product hydrolysate. The configuration of the chiral centres in these two N-methylated residues was found to be the same as those of the common unmethylated l-amino acids.