HCID 9842268, compound → HCID 86743364, compound

Participants

Reaction Steps

A process for preparing optically pure (-)-β-[(2-amino-1-naphthalenyl)thio]-α-hydroxy-4-methoxybenzenepropanoic acid of the formula ##STR20## which comprises (a) treating a solution of rac-β-[(2-amino-1-naphthalenyl)thio]-α-hydroxy-4-methoxybenzenepropanoic acid with (+)-1-(p-hydroxybenzyl)-1,2,3,4,5,6,7,8-octahydroisoquinoline to form diastereomeric salts (+)-β-[(2-amino-1-naphthalenyl)thio]-α-hydroxy-4-methoxybenzenepropanoic acid (+)-1-(p-hydroxybenzyl)-1,2,3,4,5,6,7,8-octahydroisoquinoline hydrate which crystallizes and (-)-β-[(2-amino-1-naphthalenyl)thio]-α-hydroxy-4-methoxybenzenepropanoic acid (+)-1-(p-hydroxybenzyl)-1,2,3,4,5,6,7,8-octahydroisoquinoline hydrate which, remains in solution;

Provenance & Evidence