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KORRIGERT UTGAVE / CORRECTED VERSION - Patentstyret

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NO/EP 2276756<br />

58<br />

Trinn A: Etyl 2-amino-4,5,6,7-tetrahydro-1,3-benzotiazol-4-karboksylat<br />

5<br />

10<br />

Fremstilt i henhold til fremgangsmåtene beskrevet for mellomprodukt 10 (i-10)<br />

trinn A men erstatte tioacetamid med tiourea. 1 HNMR (500 MHz, DMSO-d6) δ: 9,28<br />

(br s, 2H), 4,11 (q, J = 7,3, 2H), 3,71 (t, J = 5,0, 1H), 2,57-2,39 (m, 2H), 1,90 (m, 2H),<br />

1,78 (m, 1H), 1,59 (m, 1H), 1,17 (t, J = 7,3, 3H).<br />

15<br />

Trinn B: 2-[(Tert-butoksykarbonyl)aminol-4,5,6,7-tetrahydro-1,3-benzotiazol-4-<br />

karboksylsyre (i-11)<br />

Fremstilt fra etyl 2-amino-4,5,6,7-tetrahydro-1,3-benzotiazol-4-karboksylat (fra<br />

Trinn A) i henhold til fremgangsmåtene beskrevet for mellomprodukt 8 (i-8) trinnene B<br />

og C. 1 HNMR (500 MHz, CDCl 3 ) δ: 3,70 (t, J = 5,2, 1H), 2,74 (m, 1H), 2,64 (m, 1H),<br />

2,25 (m, 1H), 2,10-1,94 (m, 2H), 1,87 (m, 1H), 1,55 (s, 9H).<br />

20<br />

MELLOMPRODUKT 12<br />

Indan-1-karboksylsyre (i-12)<br />

25<br />

Fremstilt i henhold til fremgangsmåten i litteraturen, Journal of Organic<br />

Chemistry (2000), 65(4), 1132-1138.<br />

MELLOMPRODUKT 13a og MELLOMPRODUKT 13b

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