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Volumn 14, Issue 10, 2004, Pages 2681-2684

A new synthesis of indole 5-carboxylic acids and 6-hydroxy-indole-5- carboxylic acids in the preparation of an o-hydroxylated metabolite of vilazodone

Author keywords

Fischer indole synthesis; Japp Klingemann; Salicyl substituted indoles

Indexed keywords

AMIDE; ANTIDEPRESSANT AGENT; CARBOXYLIC ACID DERIVATIVE; CARMOXIROLE; CYANIDE; DRUG METABOLITE; INDOLE DERIVATIVE; MESYLIC ACID; VILAZODONE;

EID: 1942476589     PISSN: 0960894X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.bmcl.2004.01.110     Document Type: Article
Times cited : (32)

References (28)
  • 16
    • 1942418320 scopus 로고    scopus 로고
    • note
    • It is possible to separate the hydrazone isomers by fractioned crystallisation from acetonitrile.
  • 17
    • 0043071434 scopus 로고    scopus 로고
    • Two reasons have to be mentioned why the functional group interconversion was set about at the end: (1) the experience with the above described synthesis of carmoxirole indicated that the 5-carboxylic acid is well suited for the whole syntheses and (2) we expected cyano hydrolysis during the Fischer-indole synthesis because of the harsh acidic conditions; for less harsh conditions see:
    • Two reasons have to be mentioned why the functional group interconversion was set about at the end: (1) the experience with the above described synthesis of carmoxirole indicated that the 5-carboxylic acid is well suited for the whole syntheses and (2) we expected cyano hydrolysis during the Fischer-indole synthesis because of the harsh acidic conditions; for less harsh conditions see: Gorohovsky S., Meir S., Shkoulev V., Byk G., Gellerman G. Synlett. 10:2003;1411-1414.
    • (2003) Synlett , vol.10 , pp. 1411-1414
    • Gorohovsky, S.1    Meir, S.2    Shkoulev, V.3    Byk, G.4    Gellerman, G.5
  • 18
    • 1942449966 scopus 로고    scopus 로고
    • note
    • We tried the decarboxylation of the mixture under microwave irradiation conditions, too, hoping that the ratio for the 4-hydroxy compound could be inverted but these conditions had no effect on the reaction's outcome.
  • 28
    • 1942482353 scopus 로고    scopus 로고
    • note
    • 6) δ 10.96 (br s, 1H); 10.62 (br s, 1H); 10.33 (br s, 1H); 8.09 (br s, 1H); 7.81 (s, 1H); 7.65 (br s, 1H); 7.54 (d, 1H; J=8.9 Hz); 7.46 (s, 1H); 7.27 (d, 1H; J=1.8 Hz); 7.22 (dd, 1H; J=8.9 Hz; J=2.3 Hz); 7.12 (d, 1H; J=1.8 Hz); 6.95 (s, 1H); 3.75 (br d, 2H; J=8.2 Hz); 3.68 (br d, 2H; J=5.8 Hz); 3.41 (s, 4H); 2.69 (br t, 2H; J=7.3 Hz); 1.79 (m, 2H); 1.66 (m, 2H); mp: 307°C, decomp.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.