Table 3. Scale-Up of the Transamination of 10 to 7 as well as the Isolated Yields and Purity of the Isolated Material.

entry	scale of 10 (g)	(NH2OH)2 H2SO4 equiv	time (h)	7 crude purity (%)a	10 LC area %a	7 LC area %a	15 LC area %a	7 isolated yield (%)	purity of isolated 7 (%)b
1	10	3	24	92	4	94	2	48	>99
2	20	3	28	93	2	96	2	49	>99
3	80	3.2	40	80	4	91	2	58	97

^aBased on LC-MS area percent at 280 nm.

^bPurity determined by qNMR.