mixture of (1RS,2RS)-3-[(2RS,6SR)-2,6-mixture of (1RS,2RS)-3-[(2RS,6SR)-2,6-dimethyl morpholin-4-yl]-2-methyl-1-[4-(2-methylbutan-2-yl)phenyl]propan-1-ol and (1RS,2SR)-3-[(2RS,6SR)-2,6-dimethylmorpholin-4-yl]-2-methyl-1-[4-(2-methyl butan-2-yl)phenyl]propan-1-oll]propan-1-ol