138400-06-3Relevant articles and documents
Polycyclic azines with heteroatoms in the 1- and 3-position. 40. Synthesis of heterocyclic immunomodulators. 3. Synthesis of n-1 substituted 3-(2-mercaptoethyl)quinazoline-2,4-(1H,3H)-diones from bis(2-(2-aminobenzoylamino)ethyl)disulfane and testing of i
Guetschow,Droessler,Leistner
, p. 277 - 281 (1995)
A 3-step synthesis, starting from substituted isatoic anhydride was used to prepare substituted 3-(2-mercaptoethyl)quinazoline-2,4(1H,3H)-diones 4. Reaction of 1 with cystamine afforded bis[2-(2-amino-benzoyl-amino)ethyl]disulfanes 2. Reaction of 2 with e
Bis[(2,4-dioxo-1,2,3,4-tetrahydrochinazolin-3-yl)alkyl]disulfanes and 3-(mercaptoalkyl)quinazoline-2,4(1H,3H)-diones: Synthesis by ringtransformations and antiviral activity
Gutschow,Tonew,Leistner
, p. 672 - 675 (2007/10/03)
Reaction of N-(sulfonyloxy)phthalimide derivatives 1, 2, with cystamine and homocystamine, respectively, affords bis[(2,4-dioxo-1,2,3,4-tetra-hydroquinazolin-3-yl)alkyl]disulfanes 3, which could be reduced to 3-(mercaptoalkyl)quinazoline-2,4(1H,3H)-diones 5. (3(2-Mercaptoethyl)quinazoline-2,4(1H,3H)-dione (5a) was also obtained in a one-pot reaction from 1 or 2 and cysteamine. 2-Ethoxy-4 H-3,1-benzoxazin-4-ones 4a-c were converted with cysteamine to 3-(mercaptoethyl)quinazoline-2,4-diones 5a-c by a new ringtransformation reaction. 3- (2-Mercaptoethyl)quinazoline-2,4(1H,3H)dione (5a) and the corresponding disulfane 3a were evaluated for antiviral activity in vitro. Compounds 3a and 5a showed significant antiviral activity against some DNA- and RNA-viruses (vaccinia-, herpes simplex virus type 1; influenza A virus) at concentrations that were nontoxic to the host cell cultures.
3-(mercaptoalkyl)quinazoline
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, (2008/06/13)
A compound or its tautomer of Formula I, STR1 wherein R1 is hydrogen, a 6-methyl, 6-fluoro, 6-chloro, 6-bromo, or 6,7-dimethoxy residue, R2 is hydrogen, or a methyl residue, and n is 1 or 2, and tautomers and their pharmaceutically acceptable alkali, or ammonium salts.