1 1 g of the title compound melting point 193 u00b0 199 u00b0 c 1 2 3 4 5 6 hexahydrobenz f isoquinoline monohydrochloride 1 0 g is dissolved in 20 ml of water layered over with ether and neutralized with aqueous ammonia the organic phase is removed and the aqueous phase is reextracted with ether two 20 ml portions organics are combined dried filtered and stripped in vacuo to yield 0 75 g of the free base which is dissolved in 20 ml of benzene and 50 ml of absolute ethanol 3 4a 5 cis decahydro 5 oxiranylmethyl 2 3 4a 8a trans naphthalenetetrol tetraacetate ester 1 813 g is added to the solution and the resulting solution is heated to 50 u00b0 c u00b1 5 u00b0 for 18 hours solvent is removed in vacuo the residue is taken up in ether and the resulting powder is recrystallized from ethyl acetate to yield 1 17 g of the title compound n benzylstyrylpyridinium bromide 59 0 g is reduced by stirring in 750 ml of 50 aqueous methanol to which 30 g of sodium borohydride is added portionwise methanol is removed in vacuo the resulting slurry is filtered and the solids are partitioned between water and chloroform the aqueous layer is re extracted with chloroform the chloroform extracts are combined washed with aqueous sodium chloride dried and stripped to yield 33 2 g of the title compound four grams of this product is dissolved in absolute ethanol acidified with anhydrous hydrogen chloride in isopropanol yielding 3 7 g of solid which is recrystallized from methanol isopropanol to yield 2 72 g of crystals melting point 235 u00b0 240 u00b0 c a solution of 46 g 1 2 3 6 tetrahydro 4.