草酸 、
2-p-Tolyl-3-((3R,4S,5S,6R)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-ylamino)-3H-quinazolin-4-one 以
甲醇 为溶剂,
生成 3-[((2R,3S,4R,5R)-2,3,4,5-Tetrahydroxy-tetrahydro-pyran-2-ylmethyl)-amino]-2-p-tolyl-3H-quinazolin-4-one; compound with oxalic acid