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L-rhamnose

n-butylamine

2-chloroethyl isocyanate

→

1-(2-chloroethyl)-3-n-butyl-3-L-rhamnopyranosylurea

수율 64.3%

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실험 절차

3.3 g of L-rhamnose, 1.8 g of n-butylamine and 2.5 g of 2-chloroethyl isocyanate are treated in the same manner as described in Example 5-(1). 4.2 g of 1-(2-chloroethyl)-3-n-butyl-3-L-rhamnopyranosylurea are thereby obtained as colorless caramel.

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