Isolation and structural elucidation of chemical constituents of Amanoa almerindae

Figures & data

Figure 1.  Structures of compounds from Amanoa almerindae.

Table 1.  ¹³C NMR data of Amanoa almerindae biflavones.

Compound	Unity	C2	C3	C4	C5	C6	C7	C8	C9	C10	C1’	C2’	C3’	C4’	C5’	C6’	OCH3
9	I	164.4	103.5	182.3	161.9	99.3	164.2	94.6	157.9	104.2	120.6	128.3	121.9	160.3	116.8	131.9
	II	164.6	103.1	182.6	161.5	99.4	162.7	104.6	155.0	104.1	121.4	128.7	116.3	116.3	116.3	128.7
10	I	164.2	103.6	182.5	161.6	98.6	165.7	93.2	157.8	104.7	120.7	128.4	121.9	116.8	116.8	132.1	56.6
	II	164.7	103.1	182.6	161.5	99.3	162.8	105.3	155.1	104.1	121.3	128.7	116.3	116.3	116.3	128.7
11	I	163.7	103.8	182.5	162.7	98.6	165.6	93.2	157.8	104.7	120.7	128.5	121.3	116.8	116.8	131.9	56.6
	II	164.6	103.7	182.7	161.5	99.3	162.9	105.2	155.0	104.2	123.5	128.5	115.0	115.0	115.0	128.5	56.0