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“If only they had chosen to develop natural product drugs in a sustainable manner at the turn of the century”. In 2050, when the Earth has a population of at least 9 billion, will this be our legacy as the world contemplates the costs and availability of synthetic and gene-based products for primary health care? For most people in the world, plants, in their various forms, remain a primary source...
The valepotriates, a group of chemically unstable iridoid triesters possessing sedative activity, contain various ester groups at the C-l, C-7, and C-11 positions. Using the selective INEPT NMR technique and employing a suitable polarization delay for long-range coupling, it was possible to achieve the assignment and location of the ester groups directly, without ambiguity, and without chemical modification...
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