参考文献:
NOVARTIS AG BEBERNITZ, Gregory Raymond BHOSALE, Sandeep Bhausaheb BHUNIYA, Debnath HAJARE, Atul Kashinath MENGAWADE, Tanaji MUKHOPADHYAY, Partha P. PALLE, P. Venkata REDDY, Dumbala Srinivas Patent: WO/85 A, Location in patent: Page/Page column 48-49 WO /85 A