2-dehydro-3-deoxy-D-arabino-heptonate 7-phosphate 2627-73-8 3-DEOXY-D-ARABINO-HEPTULOSONATE-7-P 3-deoxy-D-arabino-heptulosonate-7-phosphate 3-deoxy-arabino-heptulosonate 7-phosphate 3-deoxy-arabino-heptulosonate-7-P