(8S,11R,14R)-14-tert-Butoxycarbonylamino-11-[(R)-(tert-butyl-dimethyl-silanyloxy)-(4-fluoro-3-nitro-phenyl)-methyl]-5,18-dimethoxy-4-methyl-10,13-dioxo-2-oxa-9,12-diaza-tricyclo[13.3.1.13,7]icosa-1(18),3(20),4,6,15(19),16-hexaene-8-carboxylic acid 、 (1R,13S,16S,17R,28R)-28-amino-17,25-dihydroxy-5,8,10,24-tetramethoxy-13-(2-methoxyethoxymethoxymethyl)-22-oxa-14,30,32-triazahexacyclo[14.14.2.218,21.12,6.123,27.07,12]hexatriaconta-2(36),3,5,7(12),8,10,18(35),19,21(34),23(33),24,26-dodecaene-15,29,31-trione 在
3-(二乙氧基邻酰氧基)-1,2,3-苯并三嗪-4-酮 作用下,
以
四氢呋喃 为溶剂,
以4.9 mg的产率得到tert-butyl N-[(8S,11R,14R)-11-[(R)-[tert-butyl(dimethyl)silyl]oxy-(4-fluoro-3-nitrophenyl)methyl]-8-[[(1R,13S,16S,17R,28R)-17,25-dihydroxy-5,8,10,24-tetramethoxy-13-(2-methoxyethoxymethoxymethyl)-15,29,31-trioxo-22-oxa-14,30,32-triazahexacyclo[14.14.2.218,21.12,6.123,27.07,12]hexatriaconta-2(36),3,5,7(12),8,10,18(35),19,21(34),23(33),24,26-dodecaen-28-yl]carbamoyl]-5,18-dimethoxy-4-methyl-10,13-dioxo-2-oxa-9,12-diazatricyclo[13.3.1.13,7]icosa-1(18),3,5,7(20),15(19),16-hexaen-14-yl]carbamate