Nitrafudam Explained

Drug Name:Nitrafudam
Width:250px
Cas Number:64743-09-5
Pubchem:163304
Chemspiderid:143312
Unii:7R3267A08Y
Chembl:2111024
C:11
H:9
N:3
O:3
Stdinchi:1S/C11H9N3O3/c12-11(13)10-6-5-9(17-10)7-3-1-2-4-8(7)14(15)16/h1-6H,(H3,12,13)
Stdinchikey:FYUZOMGBPKUZNJ-UHFFFAOYSA-N
Smiles:C1=CC=C(C(=C1)C2=CC=C(O2)C(=N)N)[N+](=O)[O-]

Nitrafudam is an antidepressant compound that was developed in the 1970-1980s.[1] [2] It contains three functional groups: a nitrobenzene, a furan ring and an amidine.

Synthesis

Azo coupling between 2-nitrophenyldiazonium chloride [119-66-4] (1) and furfural (2) leads to 5-(2-nitrophenyl)furfural [20000-96-8] (3). Treatment of the aldehyde with hydroxylamine gives the corresponding aldoxime (PC789659). Upon dehydration, FGI to the nitrile occurs [57666-58-7] (4). A Pinner reaction with anhydrous methanolic hydrogen chloride gives the corresponding imidate (imino-ether) [62821-40-3] (5). An addition-elimination reaction with ammonia causes FGI to an amidine, thus completing the synthesis of nitrafudam (6).

Notes and References

  1. Pong . SF . Pelosi . SS . Wessels . FL . Yu . CN . Burns . RH . White . RE . Anthony . DR . Ellis . KO . Wright . GC . White . RL . 5-phenyl-2-furamidines: a new chemical class of potential antidepressants . Arzneimittel-Forschung . 33 . 10 . 1411–1416 . 1983 . 6140016 .
  2. US . 3919231 . Pelosi SS Jr, White RE, White RL Jr, Wright GC, You CN . 1975 . Morton Norwich Products Inc . https://patents.google.com/patent/US3919231A/en?oq=US3919231.