(+/-)-5-(2-amino-3-hydroxypropyl)-2-methoxy-3-methylphenol 、 (+/-)-N-Fmoc-(1,3-dioxo-1,3-dihydro-isoindol-2-yl)acetic acid 9-(1,3-dioxo-1,3-dihydroisoindol-2-yl-methyl)-5-methoxy-4-methyl-6,7,8,9-tetrahydro-[1,3]dioxolo[4,5-h]isoquinolin-7-yl-carbaldehyde 在
三氟乙酸 作用下,
以
甲苯 为溶剂,
反应 6.0h,
以33%的产率得到(+/-)-(7S,9R)-(9H-fluoren-9-yl)methyl 9-((1,3-dioxoisoindolin-2-yl)methyl)-7-((1R)-8-hydroxy-3-(hydroxymethyl)-7-methoxy-2,6-dimethyl-1,2,3,4-tetrahydroisoquinolin-1-yl)-5-methoxy-6,7-dihydro-[1,3] dioxolo[4,5-h]isoquinoline-8(9H)-carboxylate