Diisopropylethylamine → [5-(5-Bromo-6-chloro-pyridine-3-sulfonylamino)-5,6,7,8-tetrahydro-naphthalen-1-yloxy]-acetic acid tert-butyl ester

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Reaction Steps

Starting with (5-amino-5,6,7,8-tetrahydro-naphthalen-1-yloxy)-acetic acid tert-butyl ester (example 1-1, method A, 3rd step) (2.0 g, 7.2 mmol), diisopropylethylamine (2.0 g, 15.5 mmol) and 5-bromo-6-chloro-pyridine-3-sulfonyl chloride (2.1 g, 7.3 mmol), using the method analogous to the one for example 1-1, method A, 4th step, [5-(5-bromo-6-chloro-pyridine-3-sulfonylamino)-5,6,7,8-tetrahydro-naphthalen-1-yloxy]-acetic acid tert-butyl ester (2.1 g, 55%) was obtained. MS cald. for C21H24BrClN2O5S 530, obsd. 531 [(M+H)+].

Provenance & Evidence