1-(2-chloroethyl)-3-cyclopropylmethyl-3-(D-ribofuranosyl)urea 、
二氧化氮 以2.3 g of 1-(2-chloroethyl)-1-nitroso-3-cyclopropylmethyl-3-(D-ribofuranosyl)urea are thereby obtained as yellow liquid的产率得到1-(2-chloroethyl)-1-nitroso-3-cyclopropylmethyl-3-(D-ribofuranosyl)urea