Chemistry Reference
In-Depth Information
1. Na
2
CO
3
2.
COCl
2
HO
O
O
O
COOH
HO
COOH
69
70
HO
HO
COOH
O
O
OH
HO
O
OH
OH
71
Cynarine
bis(carbamoyl chloride) 73, the key intermediate for the preparation of the bis-
(carbamate bromide) 76 [54].
Cl
O
H
N
COCl
2
N
H
O
l
73
72
N
ONa
74
Br
N
N
O
O
O
O
CH
3
Br
N
N
CH
3
N
N
O
O
75
O
76
O
Demecarium bromide
N
N
Br
