Section 23.10 Automated Peptide Synthesis 981
HF
CH 2
CH 3
CH 3 CCO 2
R R R
R R
H 2 NCHC NHCHC NHCHCO CH 2
OOO
+
+
+
HOCH 2
R
H 3 NCHC NHCHC NHCHCOH
OOO
+
CF 3 COOH
CH 2 Cl 2
CH 3
CH 3
CH 3 C
O
O C
R R
NHCHC NHCHCO CH 2
O
CH 2
CH 3
CH 3 CCO 2
RR
H 2 NCHC NHCHCO CH 2
OO
++
O
CF 3 COOH
CH 2 Cl 2
CH 3
CH 3
CH 3 C
O
O C NHCHCO CH 2
O
N-protected amino acid N-protected and
C-activated amino acid
DCC
CH 3
CH 3
CH 3 C
O
O C NHCHCOH
O
CH 3
CH 3
CH 3 C
O
O C
R R
R
R
NHCHCO DCC
O
CH 2
CH 3
CH 3 CCO 2 H 2 NCHCO CH 2
O
++
Tutorial:
Merrifield automated
solid-phase synthesis
N-protected amino acid N-protected and
C-activated amino acid
DCC
CH 3
CH 3
CH 3 C
O
O C
R
NHCHCOH
O
CH 3
CH 3
CH 3 C
O
O C
R
NHCHCO DCC
O
CF 3 COOH
CH 2 Cl 2
CH 3
CH 3
CH 3 C
O
O C
R R
NHCHC
R
NHCHC NHCHCO CH 2
O O O
BRUI23-959-998r2 29-03-2003 1:36 PM Page 981