Uracil derivatives. IV. Growth-inhibitory activity against L-1210 cells of orotic acid derivatives and synthesis of 1-(. BETA.-D-ribofuranosyl) furo (3, 4-d) pyrimidine-2, 4, …

~70%

~%

~34%

~47%

~%

~77%

~70%

~49%

~73%

~70%

~82%

~30%

~63%

~77%