Amide acetals in the synthesis of pyridothienopyrimidines

2010 ◽  
Vol 59 (10) ◽  
pp. 1946-1958 ◽  
Author(s):  
M. I. Medvedeva ◽  
N. Z. Tugusheva ◽  
L. M. Alekseeva ◽  
V. V. Chernyshev ◽  
G. V. Avramenko ◽  
...  
Keyword(s):  
Amide Acetals

Condensation polymers from 3,9-bis(7-carbomethoxyheptyl)-2,4,8,10-tetraoxaspiro[5.5]undecane. II. Poly(amide-acetals)

1962 ◽  
Vol 58 (166) ◽  
pp. 611-620 ◽  
Author(s):  
E. H. Pryde ◽  
D. J. Moore ◽  
H. M. Teeter ◽  
J. C. Cowan
Keyword(s):  
Condensation Polymers ◽  
Amide Acetals

Lactam and acid amide acetals. 64. Acylation of enamino ketones of the indolin-3-one and 2-pyrrolin-4-one series and synthesis of 2-indolyl- and 5-pyrrolylacrylic acid derivatives

1991 ◽  
Vol 27 (3) ◽  
pp. 278-283 ◽  
Author(s):  
S. Yu. Ryabova ◽  
Yu. I. Trofimkin ◽  
L. M. Alekseeva ◽  
L. S. Khabarova ◽  
V. G. Granik
Keyword(s):  
Acid Amide ◽  
Enamino Ketones ◽  
Amide Acetals

Lactam and acid amide acetals. 63. Reaction of amide acetals with enaminodicarbonyl compounds

1991 ◽  
Vol 27 (2) ◽  
pp. 178-182
Author(s):  
A. K. Shanazarov ◽  
N. P. Solov'eva ◽  
V. V. Chistyakov ◽  
V. G. Granik
Keyword(s):  
Acid Amide ◽  
Amide Acetals

Pteridines CX

Pteridines ◽  
1999 ◽  
Vol 10 (3) ◽  
pp. 79-90 ◽  
Author(s):  
Hermann Traub ◽  
Wolfgang Pfleiderer
Keyword(s):  
Functional Groups ◽  
Side Chain ◽  
Amino Group ◽  
Nucleophilic Displacement ◽  
Acid And Base ◽  
Displacement Reactions ◽  
Amide Acetals

Summary A series of new 6-substituted 2,4-diaminopteridines (3-23) and pterins (26-43) have been synthesized by nucleophilic displacement reactions at the side chain of 6-bromomethyl-2,4-diaminopteridine (2) and 6- bromomethylpterin (25) using various types of 0-, N- and S-nucleophiles. Acid and base hydrolyses allow easy conversion of the 2,4-diaminopteridines (3-5, 7, 9, 10, 12, 19-21 and 23) into the corresponding pterins (26-32, 39-42). Acylations take place at the amino as well as at the functional groups in the side chain (44-46). A versatile protection of the amino group in pterins is its transformation into the N ,N -dimethylaminomethylcnimino function by amide-acetals (47, 50) allowing subsequently selective acylations at the side chain (48, 49).

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