GS?base,富马酸加入乙腈中,加热,溶解,降温析晶,不同的投料比例都试过,出来的都是1:1的,溶剂也试过... 随便找了个WO专利,看看有没有参考价值 To a solution of 9- amino] phenoxy phosphinyl] methoxy] propyl] adenine (100 gms, 0.209 mol) in acetonitrile (1890 gms), fumaric acid (22 gms, 0.188 mol) was added and heated to reflux to dissolve the solids. The reaction mass was filtered in hot condition, cooled to 5°C and maintained for 16 hours. The product was isolated by filtration, rinsed with acetonitrile (707 gms), and dried under reduced pressure to get 92 gms of product as a white crystalline powder.查看更多
这两个短语具体是什么意思?Population-Based Projections for HIV/AIDS 应该是按(不同国家)人口基数计算(该国)的HIV/AIDS(以当前数据推测的)发病率 AIDS/HIV incidence projection by country 不太确定,猜测是:以某国2000-2015年间HIV/AIDS感染人数推测的未来几年HIV/AIDS的感染(人)数查看更多