1H-인다졸-6-카르복실산

그림문자(GHS)

• 그림문자(GHS)

  

• 신호 어

  Warning

• 유해·위험 문구

  H315：피부에 자극을 일으킴

  H319：눈에 심한 자극을 일으킴

  H335：호흡 자극성을 일으킬 수 있음

• 예방조치문구

  P261：분진·흄·가스·미스트·증기·...·스프레이의 흡입을 피하시오.

  P305+P351+P338：눈에 묻으면 몇 분간 물로 조심해서 씻으시오. 가능하면 콘택트렌즈를 제거하시오. 계속 씻으시오.

1H-인다졸-6-카르복실산 화학적 특성, 용도, 생산

• 용도

  1H-Indazole-6-carboxylic Acid is used as a reagent to synthesize azabicyclic aryl amides, which act as α7 nicotinic acetylcholine receptor agonists.

• 제조 방법

  Synthesis of 1H-indazole-6-carboxylic acid, H2L3: MeL3Ac (1.0 g; 4.6 mmol) was dissolved in 40 mL THF, and this solution was added to a 40 mL aqueous solution of lithium hydroxide (5.0 g; 210 mmol). The resulting suspension was heated at reflux with vigorous stirring overnight, after which time the solution was concentrated under vacuum to remove the organic phase. The resulting solution was filtered, adjusted to pH 3 with conc. HCl, to precipitate the product as a pale brown solid, which was filtered, washed with water and dried under vacuum. Yield 315 mg, 43%. mp 292–296 °C (decomp);
  δH (500 MHz, d6-DMSO): 7.67 (dd, 1H, J = 8.3, 1.0 Hz, H4 ), 7.85 (dd, 1H, J = 8.3, 0.8 Hz, H3 ), 8.15 (s, 1H, H6 ), 8.18 (d, 1H, J = 0.8 Hz, H2 ), 13.24 (br s, 2H, H1 & H5 ); δC (125 MHz, CD3OD): 114.1, 122.0, 122.6, 127.1, 130.6, 135.2, 141.4, 170.4; HRMS-ESI m/z: found: 163.0503; C8H7N2O2 requires: 163.0502 [M + H+ ]; ˉνmax/cm?1 (KBr): 3258 br, 2864 br, 2582 br, 1679 s, 1579 m, 1518 m, 1425 m, 1230 s, 1087 m, 954 s, 857 m, 762 m, 693 m.

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