Combinational Chemistry(组合化学) Tiny well or test tube in which reagents B and 4 are mixed 1234 c Library"of products a Fig 14.5 (a)eight hy pothetical starting materials A through and 1 through 4 can be combined in various ways to yield 16 products, each of which may have some biological activity not found in any of the starting materials. ( b)Amultitude of products are thus immediately available to be screened for medicinal activity.Combinational Chemistry (组合化学) Tiny well or test tube in which reagents B and 4 are mixed. Fig 14.5 (a) eight hypothetical starting materials A through D and 1 through 4 can be combined in various ways to yield 16 products, each of which may have some biological activity not found in any of the starting materials. (b) A multitude of products are thus immediately available to be screened for medicinal activity