1. Department of Chemical EngineeringPennsylvania State UniversityUniversity Park16802‐4400Pennsylvania
2. Laboratorio de Productos NaturalesInstituto de Química, Universidad Nacional Autónoma de MéxicoMéxico
3. Faculty of Medicine, Department of Microbiology and ParasitologyUniversidad Nacional Autónoma de MéxicoMéxico
4. Department of Biochemistry and Molecular BiologyPennsylvania State UniversityUniversity ParkPennsylvania