A kind of monosubstituted squaric amide ——mono carbamoyl amide of squaric acid 3(MCASAQ) was prepared by the condensation of squaric acid (SQ) with urea or its derivatives in water.
以
为介质,方酸与脲及其

顺利
脱

,
成了一类方酸单酰胺化
——氨甲酰类氮氧方酸3。
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庭第八季_Modern Family-Season08 

庭第八季_Modern Family-Season08
庭美剧 Young Sheldon 中英双语