(2015/05/05)
(2015/06/24)
p. 27 - 31
(2007/10/02)p. 2639 - 2640
(2007/10/02)(2008/06/13)
(R)-((S)-2-(6′-(acetamidomethyl)-5′-oxo-3′,5′-dihydro-2′H-spiro[[1,3]dioxolane-2,1′-indolizine]-7′-yl)-1-ethoxy-1-oxobutan-2-yl) 1-tosylpyrrolidine-2-carboxylate
acetic anhydride
7’-methyl-5’-oxo-3’,5’-dihydro-2’H-spiro[[1,3]dioxolane-2,1‘-indolizine]-6’-carbonitrile
6-cyano-7-methyl-1,5-dioxo-Δ6(8)-tetrahydroindolizine
methyl 6-cyano-1-hydroxy-7-methyl-5-oxo-3,5-dihydroindolizine-2-carboxylate
(R)-N-tosylproline
(S)-4′-ethyl-4′-hydroxy-7′,8′-dihydrospiro[[1,3]dioxolane-2,6′-pyrano[3,4-f]indolizine]-3′,10′(1′H,4′H)-dione
(R)-N-benzenesulfonylproline
(4S)-4-ethyl-7,8-dihydro-4-hydroxy-1H-pyrano[3,4-f]indolizine-3,6,10(4H)-trione
camptothecin