Boc-3-methoxy-L-tyrosine(dicyclohexylammonium) salt BOC-O-METHYL-L-TYROSINE DCHA SALT BOC-O-METHYL-L-TYROSINE DICYCLOHEXYLAMMONIUM SALT BOC-P-METHOXY-DL-PHE-OH DCHA BOC-P-METHOXY-PHE-OH DCHA BOC-PHE(OME)-OH DCHA BOC-TYR(ME)-OH DCHA BOC-4-METHOXY-DL-PHENYLALANINE DICYCLOHEXYLAMMONIUM SALT