, benzyloxy)carbonyl)amino)-1-phenyl-1,4,5,6-tetrahydrocyclopenta[b]pyrrole-5-carboxylate (8ja). 51 mg (42%, CDCl 3 ) ? 7.44-7.28 (m, 9H), vol.7

. Mhz, HRMS (ESI+) (M+Na) + calculated for C 19 H 21 NO 4 Na 350.1368, found 350.1360. 114.0, 105.7, 67.9, 67.8, 55.7, 45.1. HRMS (ESI+) (M+H) + calculated for C 21 H 21 N 2 O 4 365.1501, found 365.1500. Benzyl 1-(2-methylphenyl)-4,7-dihydropyrrolo[3,2-d][1,2]oxazine-5(1H)-carboxylate (8ld). 46 mg (67%), 1 H NMR (400 MHz, CDCl 3 ) ? 7.48-7.38 (m, 2H), 7.40-7.33 (m, 2H), 7.27-7.22 (m, 1H), 6.94 (d, J = 2.9 Hz, 1H), 6.08 (d, J = 2.9 Hz, 1H), 4.24 (qd, J = 7.1, 1.3 Hz, 4H), vol.61

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