1 QKD Ethyl (7s)-7-(thiophen-2-yl)-1,4-thiazepane-4-carboxylate 1.000 2 QJ1 Methyl (7s)-7-(thiophen-2-yl)-1,4-thiazepane-4-carboxylate 0.941 3 QJA 1-[(7s)-7-(thiophen-2-yl)-6,7-dihydro-1,4-thiazepin-4(5h)-yl]ethan-1-one 0.778