USEFUL SYNTHETIC PREPARATIONS
353
VI.A.7-5 Hutchins, S.M. and Chapman, K.T., TL, 35, 4055.
O^ M
Aiv
w
1; RR'NH, DMF
^
QPj
/
2:2% TFA
** J
H O
I
I
Π
R H O
VI.A.7-6 Effenberger, F. et al., LA, 1069.
RI
R
C0 2 Me
l:R2COCI,Et 3 N
NaReQ 4 , A
2: R3-OH, 80°C
Ri
R
N,
C0 2 Me
NHC0 2 R
3
53-88 %
VI.A.7-7 Shimano, M. and Meyers, A.I., JACS, 116, 6437.
jU / '
Bu
l i
1
HMPA, -50°C
N
P ~ " \
2:"ÌVÌeÌ
ZT A
v xL /"""'Bu
^ r > < ,
N
Me
r C0 2 H jS
HC1,A
Me
94%,99%d.e.
92%
353
VI.A.7-5 Hutchins, S.M. and Chapman, K.T., TL, 35, 4055.
O^ M
Aiv
w
1; RR'NH, DMF
^
QPj
/
2:2% TFA
** J
H O
I
I
Π
R H O
VI.A.7-6 Effenberger, F. et al., LA, 1069.
RI
R
C0 2 Me
l:R2COCI,Et 3 N
NaReQ 4 , A
2: R3-OH, 80°C
Ri
R
N,
C0 2 Me
NHC0 2 R
3
53-88 %
VI.A.7-7 Shimano, M. and Meyers, A.I., JACS, 116, 6437.
jU / '
Bu
l i
1
HMPA, -50°C
N
P ~ " \
2:"ÌVÌeÌ
ZT A
v xL /"""'Bu
^ r > < ,
N
Me
r C0 2 H jS
HC1,A
Me
94%,99%d.e.
92%