1d

δ, 19 (s, C, CH₃), 81 (s, C3, Ar), 118 (s, C, CN), 184 (s, C2, -C-O), 157 (s, C4,), 105 (s, C5, Ar-), 164 (s, C6, Ar-), 128 (s, C1’, Ar’), 130 (s, C3’, Ar’), 128 (s, C2’, Ar’) 124 (s, C4’, Ar’), 154 (s, C5’, Ar’), 118 (s, C6’, Ar’).

1e

δ, 19 (s, C, CH₃), 118 (s, C, CN), 153 (s, C, -C=O), 117 (s, C3, Ar-), 157 (s, C4, Ar-), 115 (s, C5, Ar-), 163 (s, C6, Ar-), 128 (s, C1’, Ar’), 130 (s, C3’, C5’, Ar’), 128 (s, C2’, C6’, Ar’) 124 (dd, C4’, Ar’), 31 (m, C1’’’), 92 (m, C2’’’, C6’’’ (, 85 (m, C3’’’, C5’’’) 27 (C4’’’)

3a

δ, 19 (s, C, CH₃), 81 (s, C3, Ar), 118 (s, C, CN), 184 (s, C2, -C-O), 163 (s, C4,), 108 (s, C5, Ar-), 165 (s, C6, Ar-), 111 (s, C1’, Ar’), 119 (s, C3’, Ar’), 114 (s, C2’, Ar’), 118 (C, CN’) 164 (s, C4’, Ar’), 119 (s, C5’, Ar’), 130 (s, C6’, Ar’), 131 (s, C1’’), 67 (s, C2’’), 67 (s, C3’’), 67 (s, C4’’), 81 (s, C5’’), 60 (s, C6’’),

3b

δ, 19 (s, C, CH₃), 81 (s, C3, Ar), 118 (s, C, CN), 180 (s, C2, -C-O), 157 (s, C4,), 105 (s, C5, Ar-), 164 (s, C6, Ar-), 128 (s, C1’, Ar’), 130 (s, C3’, Ar’), 128 (s, C2’, Ar’) 124 (s, C4’, Ar’), 154 (s, C5’, Ar’), 128 (s, C6’, Ar’), 131 (s, C1’’), 67 (s, C2’’), 67 (s, C3’’), 67 (s, C4’’), 81 (s, C5’’), 60 (s, C6’’),

3c

δ, 19 (s, C, CH₃), 81 (s, C3, Ar), 118 (s, C, CN), 184 (s, C2, -C-O), 157 (s, C4,), 108 (s, C5, Ar-), 165 (s, C6, Ar-), 111 (s, C1’, Ar’), 103 (s, C3’, Ar’), 148 (s, C2’, Ar’) 164 (s, C4’, Ar’), 106 (s, C5’, Ar’), 131 (s, C6’, Ar’), 131 (s, C1’’), 67 (s, C2’’), 67 (s, C3’’), 67 (s, C4’’), 81 (s, C5’’), 60 (s, C6’’),

3d

δ, 19 (s, C, CH₃), 81 (s, C3, Ar), 118 (s, C, CN), 184 (s, C2, -C-O), 157 (s, C4,), 105 (s, C5, Ar-), 164 (s, C6, Ar-), 128 (s, C1’, Ar’), 130 (s, C3’, Ar’), 128 (s, C2’, Ar’) 124 (s, C4’, Ar’), 154 (s, C5’, Ar’), 118 (s, C6’, Ar’), 131 (s, C1’’), 67 (s, C2’’), 67 (s, C3’’), 67 (s, C4’’), 81 (s, C5’’), 60 (s, C6’’),

3e

δ, 19 (s, C, CH₃), 81 (s, C3, Ar), 118 (s, C, CN), 184 (s, C2, -C-O), 157 (s, C4,), 105 (s, C5, Ar-), 164 (s, C6, Ar-), 128 (s, C1’, Ar’), 130 (s, C3’, C5’, Ar’), 128 (s, C2’, C6’, Ar’) 124 (dd, C4’, Ar’), 131 (s, C1’’), 67 (s, C2’’), 67 (s, C3’’), 67 (s, C4’’), 81 (s, C5’’), 60 (s, C6’’), 31 (m, C1’’’), 92 (m, C2’’’, C6’’’ (, 85 (m, C3’’’, C5’’’) 27 (C4’’’)