Diethyl Ether → N,N-dimethyl-N-geranyloxycarbonylmethyl-N-(3-(octanoylamino)propyl) ammonium chloride

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A 22.84 g (0.100 mol) portion of N-octanoyl-N′,N′-dimethyl-1,3-diaminopropane and 250 ml of diethyl ether were put into a flask, and 24.23 g (0.105 mol) of geranyl chloroacetate was added thereto at 0 to 5° C. spending 10 minutes. The reaction mixture was stirred at 5 to 25° C. for 24 hours, and disappearance of the most part of chloroacetate was confirmed by 1H-NMR. Next, the reaction mixture was slowly added dropwise to 650 ml of pentane which was ice-cooled and vigorously stirred, spending 10 minutes, to effect precipitation of the product as a white solid. Thereafter, in the same manner as described in Inventive Example 1, the title compound (to be referred to as betaine ester (4) hereinafter) was obtained as a light yellow viscous oil. Yield 38.2 g (0.0832 mol; yield 83.2%).

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