We supply the Intermediates:
S-1,2,3,4-Tetrahydro-Isoquinoline-3-Carboxylic Acid [74163-81-8]
[(3S)-(S-1,2,3,4-Tetrahydroisoquinolyl)]-N-(Tert-Butyl) Carboxamide [149182-72-9]
S-1,2,3,4-Tetrahydroisoquinoline-3-Carboxylic Acid-P-Methyl Benzene Sulfonate

CAS:85441-61-8
MF:C25H30N2O5
MW:438.5224
Application : hypertension, congestive heart failure.