p. 1230 - 1240
(2012/02/17)(2008/06/13)
p. 2559 - 2568
(2007/10/03)4-amino-2-(6-hydroxy-3-oxo-3H-xanthen-9-yl)-benzoic acid ethyl ester
bromoacetic acid tert-butyl ester
2-(6-tert-butoxycarbonylmethoxy-3-oxo-3H-xanthen-9-yl)-4-(2-carboxymethoxy-acetylamino)-benzoic acid ethyl ester
2-{9-[5-amino-2-(ethoxycarbonyl)phenyl]-3-oxo-3H-xanthen-6-yloxy}aceticacid
tert-butyl 1-{[9-(5-amino-2-ethoxycarbonyl)phenyl]-3-oxo-3H-xanthen-6-yloxy}-2-oxo-6,9,12-trioxa-3-azapentadecan-15-oate
tert-butyl 1-{9-[5-(1,2-dithiolan-3-yl)pentanamido]-2-[(ethoxycarbonyl)phenyl]-3-oxo-3H-xanthen-6-yloxy}-2-oxo-6,9,12-trioxa-3-azapentadecan-15-oate
4-acetylamino-2-(6-tert-butoxycarbonylmethoxy-3-oxo-3H-xanthen-9-yl)-benzoic acid ethyl ester