21200-24-8Relevant articles and documents
An engineered biosynthetic-synthetic platform for production of halogenated indolmycin antibiotics
Hoffarth, Elesha R.,Kong, Sunnie,He, Hai-Yan,Ryan, Katherine S.
, p. 8817 - 8821 (2021)
Indolmycin is an antibiotic fromStreptomyces griseusATCC 12648 with activity againstHelicobacter pylori,Plasmodium falciparum, and methicillin-resistantStaphylococcus aureus. Here we describe the use of the indolmycin biosynthetic genes inE. colito make indolmycenic acid, a chiral intermediate in indolmycin biosynthesis, which can then be converted to indolmycin through a three-step synthesis. To expand indolmycin structural diversity, we introduce a promiscuous tryptophanyl-tRNA synthetase gene (trpS) into ourE. coliproduction system and feed halogenated indoles to generate the corresponding indolmycenic acids, ultimately allowing us to access indolmycin derivatives through synthesis. Bioactivity testing against methicillin-resistantStaphylococcus aureusshowed modest antibiotic activity for 5-, 6-, and 7-fluoro-indolmycin.
A concise synthesis of (-)-indolmycin and (-)-5-methoxyindolmycin
Sutou, Noriyuki,Kato, Keisuke,Akita, Hiroyuki
, p. 1833 - 1838 (2008/12/22)
Concise syntheses of (-)-indolmycin 1 and (-)-5-methoxyindolmycin 3 were developed based on a palladium-catalyzed reaction of (2S,3R)-2-acetoxy-3-methyl-5-trimethylsilyl-4-pentynoate 6 with an o-iodoaniline derivative 10 or 11, followed by reaction with g
Process for producing indolmycins
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, (2008/06/13)
A process for producing indolmycin or a salt thereof which comprises reacting a compound of the formula: or a salt thereof with methylamine or a salt thereof, can be produced in an optically active form in a high yield and high quality, and is advantageous from the industrial point of view.
Development of a stereoselective practical synthetic route to indolmycin, a candidate anti-H. pylori agent
Hasuoka, Atsushi,Nakayama, Yutaka,Adachi, Mari,Kamiguchi, Hidenori,Kamiyama, Keiji
, p. 1604 - 1608 (2007/10/03)
A stereoselective practical synthetic route to indolmycin is described. The route is composed of the regioselective coupling of indolyl magnesium halide with a trans-epoxy ester, diastereoselective oxazolone ring formation with guanidine and amine exchang
Structure-activity dependency of new bacterial tryptophanyl tRNA synthetase inhibitors
Witty, David R.,Walker, Graham,Bateson, John H.,O'Hanlon, Peter J.,Cassels, Robert
, p. 1375 - 1380 (2007/10/03)
Analogues of the aminoacyl tRNA synthetase inhibitor, indolmycin, have been synthesised in which the side chain methyl group is replaced by a wide range of substituents. Their antibacterial and enzyme inhibitory potency is related to steric properties and
Total synthesis of (±) indolmycin
Shue, Youe-Kong
, p. 6447 - 6448 (2007/10/03)
A practical and short synthesis of a novel antibiotic, (±) indolmycin, has been accomplished. The overall process requires only 4 chemical steps by starting from gramine derivative 3 and oxazolinone 2.
New Total Synthesis of (+/-)-Indolmycin
Dirlam, John P.,Clark, David A.,Hecker, Scott J.
, p. 4920 - 4924 (2007/10/02)
A convergent total synthesis of the antibiotic (+/-)-indolmycin (1) is presented.N-Carbobenzoxy-3-(1-chloroethyl)indole (12) is prepared in three steps from indole-3-carboxaldehyde (9).Alkylation of the lithium anion of 2-(dimethylamino)-4(5H)-oxazolone (4) with chloride (12) provides a mixture of the (+/-)-2-dimethylamino derivative of indolmycin (13) and its diastereomer (14) in a ratio of 2.2:1.Amine exchange is effected by treatment of 13 with methylamine, affording (+/-)-1 in five steps from commercially available 9.Efforts to extend this technology toward an asymmetric synthesis of (-)-1 are described.
ASYMMETRIC TOTAL SYNTHESIS OF INDOLMYCIN
Takeda, Takeshi,Mukaiyama, Teruaki
, p. 163 - 166 (2007/10/02)
An asymmetric total synthesis of indolmycin was achieved via a key intermediate, α-indolmycenic acid ester.The ester was obtained by oxygenation of methyl (S)-3-(3-indolyl)butanoate which was prepared by asymmetric synthesis utilizing (2R,3S)-3,4-dimethyl