ALPHA-HYDROXYMETHYL-L-TYROSINE (+)-ALPHA-HYDROXYMETHYL TYROSINE (R)-ALPHA-HYDROXYMETHYL TYROSINE R-A-hydroxymethyl tyrosine (r)-α-(hydroxymethyl)tyrosine α-hydroxymethyl-l-tyrosine α-Hydroxymethyl-L-tyrosine, (+)-α-Hydroxymethyl tyrosine (+)-α-Hydroxymethyl tyrosine