A process, and variations thereof, for the preparation of 5,6-dihydroxy-2-amino-1,2,3,4-tetrahydronaphthalene derivatives of formula (I), wherein R.sub.1, R.sub.2, R.sub.3 can independently be hydrogen or lower alkyl.
一种用于制备式(I)的5,6-二羟基-2-
氨基-
1,2,3,4-四氢萘衍
生物的方法及其变体,其中R.sub.1、R.sub.2、R.sub.3可以分别是氢或较低的烷基。