112 ml of water and 112 ml of methanol was added dropwise thereto over the course of 1 hour the mixture was further stirred for 30 minutes after the reaction methanol was distilled off under reduced pressure to the resulting concentrate was added 300 ml of toluene the toluene solution was washed twice with 300 ml of a saturated aqueous solution of sodium chloride the toluene solution was transferred to a distillation flask and under reduced pressure the toluene was distilled off the residual solution was distilled under reduced pressure to afford 154 8 g of a fraction having a boiling point of 89 u00b0 95 u00b0 c 1 5 mmhg the product was identified as compound i a 0 from the following data ir 3350 cm 1 710 cm 1 nmr 6 15 b 2h 5 37 4 95 bd 1h 3 80 q 1h 1 60 bs 3h 0 80 t 3h i a 200 ml autoclave was charged with 24 4 g of compound iv 0 obtained as described in example 1 24 ml of cyclohexane and 0 24 g of a 5 palladium on activated carbon catalyst and under ice cooling at 5 u00b0 10 u00b0 c hydrogen was introduced into the autoclave under a hydrogen pressure of 5.