os0nr¹s v t b e¹lÕ - jst · med. chem. lett., 17, 3095(2007) target molecule o oh oh oh o o oh...
TRANSCRIPT
81% (2 steps)
Ns = S
O
O
O2N
H
H
H
H H
H
H+
R
O
OH
O
O
OHR
H+
H Oxidation
+H2O
H+
R
R
H
CO2
OTBDPS
OBnOBn
OBn
OTBDPS
OBnOBn
OBn
OBn
OBn
OBn
OBn
OBn
OBn
OBn
OBn
OBn
O
O
HO
OH
OH
A C
B